Questions 11-14 ask about Passage A.

14. It can reasonably be inferred from Passage A that before the 1950s, plastics manufacturers had not yet figured out:

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

According to the title stem time word 1950s, locate to L40-41, "The producers in the 1950s figured out how to produce better plastics, and how to match plastics to different application requirements." So the producers before the 1950s were Did not understand these two points. Item G meets the requirements.