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: adding a direct flame to container of acid causes a (A) dormant cycle (B) lot of nothing (C) lower temperature (D) vapor expulsion

SOLUTION: D

PROBLEM: Which makes a sound when you interact with it? (A) something invented by Pasteur (B) something invented by van Leeuwenhoek (C) something invented by Sax (D) something invented by Galileo

SOLUTION: C

PROBLEM: A reflective surface fogging up is (A) reflection (B) refraction (C) evaporation (D) condensation

SOLUTION:
D