Read the following extracts carefully and answer the questions that follow:

But suddenly she saw a young cow lying dead by the roadside, just where it had

been struck by some fast-moving vehicle. “Isn’t that the same cow that ran in front of the bus on our trip to town?” she asked the conductor. The conductor nodded, and she was overcome with sadness.

a. Whom does ‘she’ refer to?

b. How does the presence of the cow affect her mood during her return journey?

c. What kind of a person is Valli?

d. When was Valli overcome with sadness?