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").

Q: Which is most harmful to a human? (A) dynamite going off (B) reading email (C) balloons popping (D) opening a soda

A: A
****
Q: Northern countries have extensive erosion due to (A) glacial liquification (B) cola mining (C) more frequent tornadoes (D) meteors

A: A
****
Q: Which of the following is an example of electrical insulation? (A) Ethernet cables (B) stove burners (C) movie cameras (D) air conditioning

A:
A
****