instruction:
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").
question:
An echo is produced by what type of reflection of sound source? (A) Direct (B) Distant (C) Varied (D) Single
answer:
D


question:
Which two objects would electricity best flow through? (A) a tin can and a plastic fork (B) a steel beam and a soda can (C) an eraser and a wooden pencil (D) human skin and rubber gloves
answer:
B


question:
Seed dispersal is when the seeds of a plant are moved to a new environment from where? (A) plant charts (B) sky (C) space (D) parent flora
answer:

D