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").

Greenhouses are great for plants like (A) Pizza (B) Lollipops (C) Candles (D) French beans
D

Cows know there is salt in a mineral lick because (A) they have receptors on their tongue that allow them to experience spice and seasonings (B) a cow in the ocean told them it was there (C) it's on their side of the pasture's fence (D) they evolved where there were great redwood trees
A

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