It would be proofreading ( c ) to see if what you wrote moves the story forward and the dialogue is correct, and any grammar commas and other punctuation are correct.
Mars has a unique environment from that of other planets. Firstly, it's rocky, dusty terrain makes it impossible for plants to grow. Also, on Mars there are volcanos, just like on Earth! Another unique aspect of Mars' terrain is that the group is mostly made of basalt, an igneous rock that on Earth is found on the ocean floor. It also is covered in a thin layer of iron.
Both poems "A Contribution to Statistics" and "And Yet the Books" both depict different events in the middle of the poem, but in the end imply that there is something constant which is reality. Both display smaller fragments of events, stories, or examples, but the last lines of how stories and ideas go, and how numbers give statistics to some instances, give the general idea that the ups and downs of the poem all end up to one final reality.
B is the answer I'm pretty sure