The correct answer is B. While someone else is eating or opening a window or just walking dully along.
Suffering, in Auden's (and old masters') view, is not a drastic case of the human condition. Auden doesn't single it out to depict it in its tragic magnificence. He puts it in the context of ordinary lives of people who mind their own business. It happens in circumstances that are most trivial for those other people. It seems that everyone is either ignorant or indifferent to another person's suffering.
mannnnnnn i needed this finna go buy me sum gas gas if u kno what i mean
