What’s the correct answer !

A. They have been enemies and Greg isn't used to being friendly or having anything in common with her.

Explanation:

Without knowing anything about the context, and through process of elimination, this is the only answer that makes sense.

B and C Don't seem to work because it isnt stated that Greg is worried or embarrassed.

D. Doesn't seem to work, at least on its own, because Mr. Z thinking they should be friends, with no other factors, doesn't seem like it would be overwhelming. Unless they had been enemies, had never been friendly and thought they had nothing in common. Which leads back to answer A.

the symbol of the grandfather's heritage in this excerpt from "the medicine bag,” is the beaded bolo tie.

a bolo tie is a cord fastened around the neck with an ornamental clasp which is worn as a necktie. they have been used by native american tribes such as hopi, navajo, zuni, and puebloans since the mid-20th century.

therefore, the fact that the grandfather is wearing a bolo tie refers to his heritage as native american.