Definition: In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.
Input: Article: Spring is coming, spring is coming, Birdies, build your nest; Weave together straw and feather, Doing each your best. Spring is coming, spring is coming, Flowers are coming too: Pansies, lilies, daffodillies Now are coming through. Spring is coming, spring is coming, All around is _ , Shimmer and quiver on the river, Joy is everywhere. ----William Blake
Question: The poet felt _ when he was writing the poem.
Options: (A) surprised (B) lonely (C) happy (D) sad
Output:
C