5. The information about the narrator's grandparents in the highlighted portion primarily serves to reveal about these characters their:
Your Answer is
Correct Answer is A
Explanation
According to the description of positioning, it mainly shows that grandparents insist on certain things and are unwilling to try new things or other things.
Item A: "I like some specific foods very much, and it is difficult to change" is in line with the positioning information.
Item B: Contrary to positioning information.
CD item: It is not mentioned in the text.