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").

One way to recycle paper is by using it to (A) build oceans (B) build spaceships (C) wipe grime (D) build cars
C

heat and pressure change the remains of what into natural gas? (A) leaves (B) cans (C) books (D) cars
A

Why is acid rain unhealthy? (A) because it causes drought (B) because it evaporates too quickly (C) It contains various detrimental particles from the air (D) because it causes algae growth

C

