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: Grooves in the ground are a sign of (A) sink holes (B) erosion (C) water accumulation (D) high traffic

SOLUTION: B

PROBLEM: Nerves all have (A) microscopic parts (B) short arms (C) viable organs (D) liver transplants

SOLUTION: A

PROBLEM: The pull of gravity on objects increase as what happens? (A) the object gets further away (B) the object is pulled in circles (C) gravity is heavier on an object (D) the object is brought closer

SOLUTION:
D