37.

Answer and Explanation

Your Answer is

Correct Answer is D

Explanation

Item A "Sound films were in their infancy at the time" has nothing to do with the subject of the paragraph.

Item B "The cane is a prop used by Foley to make sound" is the same as the previous one.

Item C "The process he led took place after the actor's filming" has nothing to do with the subject of the paragraph.