I think its b if I'm not mistaken
The answer to this is symbol because symbol stands for an abstract idea such as an idea, quality, concept or condition.
Anne's family moves into the secret annex to wait out the war
C.
Looking at the animals is my favorite part of visiting my uncle's farm in Vermont.
Spender is the archaeologist for the fourth expedition. He reveres Mars and quickly leaves the crew to explore the planet by himself. He learns to read Martian. Finally, he decides that he should kill off the crew in an effort to preserve Mars.