Final answer:
The given phrase is an example of a simile used to describe someone's temperament.
Step-by-step explanation:
The given phrase, 'Docile and good-tempered, yet gay and playful as a summer insect,' is an example of figurative language known as simile. A simile is a comparison between two things using the words 'like' or 'as.' In this case, the phrase compares someone's temperament to that of a summer insect, suggesting that they are gentle, pleasant, and cheerful.
The phrase does not have a right or wrong answer, but it is a descriptive statement. Therefore, it is not a question to be answered with 'True' or 'False.' So, the correct response to the given question is B) False.