21. The main purpose of the passage is to:

Answer and Explanation

Your Answer is

Correct Answer is D

Explanation

The entire article is devoted to the beginning, development, and achievements of Rosetta Tharpe's musical career.

Item D: Several events in Tharpe's early music career, in line with the main theme of the article.

Item A: The comparison between the two kinds of music is not the focus of the article.

Item B: Comparing Tharpe's gospel with other singers' gospel is a detailed description.

Item C: The focus is not on other musicians.