Answer:
to better understand and appreciate their heritage
Explanation:
In the last line of the excerpt he wants these artists to "cause the smug Negro middle class to turn from their white, respectable, ordinary books and papers to catch a glimmer of their won beauty." In this line "their own beauty" is the heritage of African Americans. The "near intellectuals" aren't musicians and writers. They are African Americans who are paying attention more to white culture than their own history.
a. three major supporting details.
There are three supporting details for the main idea on the theories to explain why people yawn. Each of the supporting details contains a key word or phrase to indicate that they indeed are a main supporting detail. These key words and phrases are "One explanation is...", "A second theory...", and "Yet another explanation...". These all show the supporting detail is contained in the sentence. The last sentences just build and connect to information that has already been introduced.
Answer:
we need to see the passage