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

What is a source of oxygen through photosynthesis? (A) lakes (B) car engines (C) sunflowers (D) people
C

An example of a simple machine requiring mechanical energy in order to function would be (A) a light that needs a crank to be turned (B) a radio that needs four batteries (C) a computer that needs to be plugged in (D) a stove that works on gas

A

