2. Which language is commonly shared by the Navajo and Apache, as mentioned by historians and scholars? (1 point)

a Athapascan

Ob Puebloan

Apachean

d: Navajoan

a. Athapascan

The correct answer is a: Athapascan. Historians and scholars have noted that the Navajo and Apache languages are both part of the Athapascan language family.

To answer this question, we need to determine which language is commonly shared by the Navajo and Apache people. One approach is to consult historians and scholars who have studied the languages of these indigenous groups.

1. Start by searching for reputable sources, such as academic journals and books, that discuss the history and languages of the Navajo and Apache people. You can use search engines, online libraries, or academic databases such as JSTOR or Google Scholar to find relevant sources.

2. Once you have identified several relevant sources, read through them to gather information about the languages spoken by the Navajo and Apache.

3. Look for references or mentions of the specific language that is commonly shared by these two groups. Historians and scholars often use the term "linguistic affiliation" to describe the connection between languages.

4. Based on the information gathered, you will likely find that the commonly shared language by the Navajo and Apache is Athapascan, sometimes referred to as Apachean.

Therefore, the correct answer to the question is: a) Athapascan.