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").

Which of the following is never an element used to make carbohydrates for the plant? (A) sand (B) water (C) sunlight (D) carbon dioxide
A

Sleet is made out of water that is (A) vapor (B) hot (C) liquid (D) cold
D

Another source of pollution may be (A) throwing things in the ocean (B) buying a new solar panel (C) biking instead of driving the car (D) using old food as compost for the plants

A