The answer is B (i am pretty sure this correct but not 100%)
Camus said that the individual’s search for the meaning of life should lead to a path of action.
The action he is talking about is referring to the revolt against tyranny, irrationality, and absurdity. According to this French writer and thinker, a man has to take action against anything absurd and things that make no sense, when it comes to both their personal life, and the life of the community they are living in.
Trees help purify our air. When the air is to contaminated trees take in all that contamination so we can breathe better.