Which of the following was designed to keep the colonists from moving into the Ohio River valley?

a Pontiacs Proclamation
b Stamp Act
c Proclamation of 1763
d Townshend Acts

c Proclamation of 1763

The answer is c) Proclamation of 1763.

Here is a step-by-step explanation:

1. Review the options provided: Pontiac's Proclamation, Stamp Act, Proclamation of 1763, and Townshend Acts.

2. Analyze each option to determine which one was designed to prevent colonists from moving into the Ohio River valley.

3. Pontiac's Proclamation: This proclamation, issued by the Ottawa Chief Pontiac in 1763, was aimed at uniting Native American tribes against British encroachment. It did not directly address the colonists' movement into the Ohio River valley.

4. Stamp Act: The Stamp Act, passed in 1765, imposed taxes on printed materials in the American colonies. While it played a role in increasing tensions between the colonists and the British government, it did not specifically target the Ohio River valley.

5. Proclamation of 1763: This proclamation, issued by the British government, prohibited colonists from settling west of the Appalachian Mountains, including the Ohio River valley. It aimed to prevent conflicts between colonists and Native American tribes and to control westward expansion.

6. Townshend Acts: The Townshend Acts, passed in 1767, imposed taxes on imported goods in the American colonies. These acts were primarily focused on raising revenue for the British government and reducing British debt, not specifically on limiting colonists' movement into the Ohio River valley.

Based on the analysis, the correct answer is c) Proclamation of 1763.

The correct answer is c) Proclamation of 1763.

To determine the correct answer, we can take a closer look at each option and eliminate the incorrect choices.

a) Pontiac's Proclamation: This proclamation was issued by the Ottawa leader Pontiac in 1763, after the French and Indian War. It called for Native American tribes to unite and resist British colonization. However, it did not specifically target the colonists from moving into the Ohio River valley.

b) Stamp Act: The Stamp Act, passed in 1765, was an act by the British Parliament that imposed a tax on paper goods in the American colonies. While it was met with resistance from the colonists, it did not specifically aim to prevent them from moving into the Ohio River valley.

c) Proclamation of 1763: This proclamation was issued by the British Crown in 1763 following the French and Indian War. It stated that colonists were prohibited from settling west of the Appalachian Mountains, including the Ohio River valley, as a way to avoid conflicts with Native American tribes. Therefore, this proclamation was specifically designed to keep the colonists from moving into the Ohio River valley.

d) Townshend Acts: The Townshend Acts were a series of British laws passed in 1767 that imposed taxes on several imported goods. While these acts contributed to growing tensions between the American colonies and the British government, they were not specifically aimed at preventing the colonists from moving into the Ohio River valley.

By process of elimination, we can conclude that the correct answer is c) Proclamation of 1763.