instruction:
In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
question:
The sidewalk next to a house having a crack in it and having vegetation growing from it is considered? (A) insects (B) weathering (C) erosion (D) lava
answer:
B


question:
A circuit is parallel when more than one pathway has flowing what? (A) ideas (B) stocks (C) water (D) zapping energy
answer:
D


question:
In a warm room, it is likely that the source of heat is (A) a series of metal pipes along a wall (B) a small ceiling fan (C) a stove which is turned off (D) a pile of boxes
answer:

A