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: Unlike trees in the forest or a pond full of fish, metal is only available until (A) it is depleted for good (B) it is found on catfish scales (C) it becomes necessary to conduct electricity long distances (D) it is used to make diamond rings

SOLUTION: A

PROBLEM: Offspring receive genes from their parents via what? (A) gene therapy (B) documents (C) double helix (D) paperwork

SOLUTION: C

PROBLEM: Playing music at a certain frequency may (A) shatter a glass (B) send sound outside (C) hurt your teeth (D) crack a mirror

SOLUTION:
A