Answer: the right answer is b. Millay finds beauty in the autumn world but resents the rebirth of spring because she sees death and sorrow everywhere.
Explanation: the author says: "...Thy woods, this autumn day, that ache and sag And all but cry with colour! ..." meaning that fall is colourful, then he says: "...Lord, I do fear Thou’st made the world too beautiful this year..." meaning the view is nice, after that he claims: "...let no bird call..." meaning please don't let birds call alluding to another season to come. At the end the author mentions another weather:"...April Comes like an idiot, babbling and strewing flowers..."