This gives the reader a sense of the burden that the men are bearing in carrying these things. Much attention is given to the weight and pressure the soldiers feel from what they're carrying and from external forces, such as nature.
Explanation:
"They carried the sky. The whole atmosphere...they carried gravity." But the greatest weight the men feel comes from nothing they can physically carry, but rather their emotions: "Grief, terror, love, longing these were intangibles, but the intangibles had their own mass and specific gravity, they had tangible weight.
The answer is "C". She is talking about being equal with men and she can do as much as they can and that is a struggle because nobody is going to listen to her. I don't see any part that talks about a slave but that option is the most accurate.