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").

What becomes smoother through weathering? (A) rainbow (B) water (C) cat (D) pumice
D

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

During seasonal changes, like from summer to fall, what is a common noted change? (A) evenings are much brighter (B) new leaves begin to grow (C) stars are seen more easily at night (D) the sun begins to set earlier
D