Answer: A. He sets the opening of the story on a rainy day.
Explanation:
<em>The Metamorphosis</em> is a 1915 book by Franz Kafka. It is about a man called Gregor who is, over the course of one night, transformed into a huge insect.
In this particular excerpt, it is the rainy weather that makes the situation sad. Gregor did have a bad dream, but we are not given any particular information about it. Gregor is certainly not feeling sad because of his room, nor does his profession affect his mood. However, in the last excerpt, we see that the weather is described as "dull", and the author points out that the rain makes Gregor "quite sad." The fact that the author sets the story on a rainy day makes it even more melancholic
