I think it’s C but I also think it’s D because it does mention that Kara is sweating in the text.
In the attic, sweat dripped off Kara's nose and onto the old newspapers. She was almost done going through the stacks of papers. Then, once her grandmother was home, they would start on the furniture. From outside, below the window, she heard the noise of a key in the door, and peered down past the "For Sale" sign hanging on the porch to see that her grandmother had just gotten home. Which of these is an explicit detail from the text?
A. Kara's grandmother is moving.
B. Kara's grandmother will be angry that Kara isn't finished yet.
C. Kara's grandmother has wound up with a lot of things she doesn't
want.
D. Kara is sweating.