Why does Marty snicker when she donates a day of algebra class for an outdoor excursion?

A. She knows that everyone loves algebra and that everyone will be angry with her for losing a class day.She knows that everyone loves algebra and that everyone will be angry with her for losing a class day.
B. She is joking about how there is no question that being outdoors (or anything really) is better than algebra.She is joking about how there is no question that being outdoors (or anything really) is better than algebra.
C. She likes to make fun of Mr. Torres and his weird obsession with exotic and fragile plants from faraway places.She likes to make fun of Mr. Torres and his weird obsession with exotic and fragile plants from faraway places.
D. Marty is clearly a sarcastic and unpleasant person to be around while at school, especially in Mr. Torres' class.

B. She is joking about how there is no question that being outdoors (or anything really) is better than algebra.