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: Using mirrors to focus collected light from heavenly bodies allows (A) detailed observation (B) foregone conclusions (C) radiation experiments (D) celestial music

SOLUTION: A

PROBLEM: A prickly pear absorbs nutrients from (A) below it (B) far from it (C) beside it (D) above it

SOLUTION: A

PROBLEM: If a thing is going to shock you, you could block the shock best with (A) a log cabin (B) a metal plane (C) an aluminium cup (D) a tin can

SOLUTION:
A