Grandpa [holding a forkful of grilled chicken to his mouth]: this is delicious, meredith. you did a great job. i hope you have more.
meredith [beaming as she serves a second of chicken to her mother]: , grandpa.
mother: , honey. now, go see if there is more for your grandfather.
meredith okay mom. [meredith hums and skips toward the back porch].

the stage directions and action in this scene the reader understand that meredith is
a) tired of serving everyone else.
b) disappointed there will be no leftovers.
c) sad that her family did not like her chicken.
d) proud of the job she did grilling the chicken.

D)Proud of the job she did grilling the chicken

Explanation:

She is proud of the job she did grilling the chicken because  the text shows many details that support this. Her family is complimenting her on how good of a job she did grilling the chicken, and she is humming and skipping, a sign of happiness.

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.