The correct answer is indeed C. When people are doing ordinary things, such as eating or walking. the poem talks about the indifference that most people feel towards the suffering of others, that could be taken place "While someone else is eating or opening a window or just walking dully along".
C. When people are doing ordinary things, such as eating or walking
Explanation:
In the excerpt from the poem Musee des Beaux Arts, W.H. Auden, about how suffering catches people by surprise. That's because this suffering happens when people are doing ordinary everyday things like eating and walking.
The part of the poem that talks about it is:
<em>“About the suffering they were never wrong, the old masters: how well they understood its human position; how it takes place while someone else is eating or opening a window or just walking dully along.”
</em>
