9. The writer wants to divide this paragraph into two in order to separate information about the discovery of the source of the beetle's material from the discussion regarding how that material was created. The best place to begin the new paragraph would be at the beginning of:

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

The topic is required to be divided into two paragraphs. The first paragraph explains the discovery of the origin of the beetle's material, and the second paragraph explains how the material was created. S5 starts the process of creation, so item B is correct.