4. why did railroad leaders consolidate their lines in the 1880s?

a. to reduce competition and increase efficiency
b. to keep from becoming "too big too quickly"
c. to ensure vertical integration
d. to increase rapid construction of railroad lines

a. to reduce competition and increase efficiency.

The correct answer is a. to reduce competition and increase efficiency.

The answer to this question is a. to reduce competition and increase efficiency.

During the late 19th century, the railroad industry in the United States experienced rapid growth and expansion. However, this growth also led to intense competition among different railroad companies. In order to avoid destructive competition and to improve their overall efficiency, railroad leaders decided to consolidate their lines.

To get to this answer, you can follow these steps:

1. Understand the context: This question is about the railroad industry in the 1880s. Knowing the historical background helps to narrow down the potential answers.

2. Read the question carefully: Focus on the keyword "consolidate" and identify the purpose behind it.

3. Analyze the options: Review all the answer choices and consider how they relate to the purpose of consolidating railroad lines.

a. to reduce competition and increase efficiency: This choice aligns with the purpose mentioned earlier in terms of eliminating competition and improving efficiency.
b. to keep from becoming "too big too quickly": This option doesn't directly address the issue of competition or efficiency.
c. to ensure vertical integration: Vertical integration refers to consolidation within the same industry sector, but it doesn't necessarily relate to competition or efficiency.
d. to increase rapid construction of railroad lines: This option focuses on construction speed and doesn't address the competition or efficiency aspect.

4. Select the correct answer: Based on the analysis, the best answer is a. to reduce competition and increase efficiency. This choice directly addresses the main reason why railroad leaders decided to consolidate their lines in the 1880s.