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").

Flowers with more pollinators (A) escalate reproduction (B) increase water usage (C) increase visual appeal (D) decrease reproduction
A

An echo is produced by what type of reflection of sound source? (A) Direct (B) Distant (C) Varied (D) Single
D

which of these is an accurate scenario? (A) the sun traveling around the earth (B) none of these (C) the sun orbiting Mars (D) the earth traveling around the sun

D