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: If a thing has a good impact on nature, it is most likely (A) putting plastics in special containers (B) burning old used tires (C) putting cigarettes out in ponds (D) using aerosol air fresheners

SOLUTION: A

PROBLEM: Which sustains life yet stopped growing? (A) air (B) a bush (C) a rock (D) a felled tree

SOLUTION: D

PROBLEM: Magnets may be attracted to (A) clay pots (B) roofing nails (C) paper plates (D) plastic cutlery

SOLUTION:
B