K. I have to do I believe is right.
(Tôi phải làm cái gì tôi tin là đúng)
B. why
C. what
A. when
D. who
E. bỏ trống

the answer is option C what,I have to do what I believe is right

Explanation:

hope it helps

i think that the answer is substandard.

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.