What regret did Chandra have relating to reading?

Chandra's regret about reading centers around her desire to understand her husband's computer screen. This particular aspect highlights her feeling of exclusion from aspects of her husband's life that were connected to his work, his interests, and ultimately, their relationship. The inability to read what he was engaged with suggests a longing for connection and comprehension that she felt was out of reach due to her illiteracy. This feeling permeates her experience and signifies a deeper emotional regret beyond just the act of reading; it reflects her struggle with self-identity and her role in a modern, technological world.

Other choices present valid concerns regarding literacy but do not capture the specific emotional gravity tied to her relationship with her husband and the immediate implications of not being able to read that part of his life.