11. The main purpose of the passage is to:

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation

Item A: The first paragraph talks about the legend of Edison. Experts use materials to study Edison, and propose a plan to study Edison. Subsequent paragraphs are developments around the first paragraph.

Item B: Does not describe how Rosenberg and Israel collected the data.

Item C: No reinvent Edsion image.

Item D: Only covered in the fourth paragraph.