After reading the vignette "What Sally Said," what part of the earlier vignette "Sally"
makes more sense?

The second option is the correct one.

Explanation:

In "What Sally Said" we learn about the abuse she suffered at home, from her father, who is very intolerant and incomprehensible, who directs his sisters' mistakes in Sally, making her very unhappy.

Sally is often beaten and insulted, she can only leave the house to go to school and comes home walking very fast so as not to be late and provoke her father's wrath.

For this reason, we can say that the correct answer to your question is "Why does Sally look at her feet and walk quickly to the house from which" she cannot leave "?"

a) walter looks unhealthy

not concrete, existing in thought or as an idea but not having a physical or concrete existence