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: An example of an instinctive behavior is (A) doing a cartwheel outside (B) singing on a stage (C) eating a large pizza (D) a mother feeding the kids

SOLUTION: D

PROBLEM: Factories often add something to the environment that is (A) helpful (B) productive (C) sanitizing (D) posionous

SOLUTION: D

PROBLEM: If a person is running a salad bar and needs to keep the bar cold, and therefore the ice frozen, they might (A) pour sodium over the ice (B) put the ice in the sun (C) melt the ice on a stove (D) throw the ice away

SOLUTION:
A