TASK DEFINITION: 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").
PROBLEM: When we made some confetti it differed from the original sheets of paper in (A) color (B) pattern (C) temperature (D) shape

SOLUTION: D

PROBLEM: What will air usually do when heated up beyond a certain point? (A) it will fall (B) it will remain (C) it will ascend (D) it will die

SOLUTION: C

PROBLEM: Which is more accurate: (A) sharks use gills to swim underwater for longer than humans can (B) humans use gills to extract carbon from the water (C) sharks use gills to extract carbon from the water (D) sharks are unable to find oxygen while underwater

SOLUTION:
A