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").

Which is a byproduct of a lightbulb? (A) taste (B) death (C) warmth (D) sound
C

A guy wants to be able to remember the evening. He can be sure that he has a visual and audio backup of the night by (A) bringing his camera (B) bringing his son (C) bringing a drink (D) bringing a chair
A

A creature that sometimes attaches to sharks is (A) another shark (B) a ray-finned fish (C) a jellyfish (D) a turtle

B