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 basic outside of our planet is comprised of (A) types of stone (B) frozen green grass (C) solid ice balls (D) molten hot lava
answer:
A


question:
Which is likely to spread seed? (A) a car (B) a sun beam (C) a whale (D) a hummingbird
answer:
D


question:
Gravity is an example of which? (A) Magnetic Force (B) Speed (C) Contact Force (D) Non-Contact Force
answer:

D