This passage is designed to a) explain why the great blue hole formed. b) describe what the great blue hole is like. c) encourage the reader to study other blue holes. d) persuade the reader to visit the great blue hole.

people are gonna need the passage.

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.