11. The main purpose of the passage is to:
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.