TASK DEFINITION: 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").
PROBLEM: It is possible to renew (A) sunflowers (B) oil (C) steel (D) stones

SOLUTION: A

PROBLEM: One type of electrical circuit that requires a switch could be (A) running (B) diving (C) dimming table lights (D) swimming

SOLUTION: C

PROBLEM: As vehicles become more efficient petro consumption (A) increases (B) stops (C) decreases (D) stay the same

SOLUTION:
C