Answer:
D) in a cup of boiling water
Explanation:
The question is incomplete. The following options are missing:
A) in a bowl of hot soup
B) in a glass of iced tea
C) in a glass of tap water
D) in a cup of boiling water
The four options involve liquids (option B probably includes some ice and option D includes steam water). As temperature increase, the speed of the individual molecules of a substance also increases. Ordering the options by temperature, from the higher to the lower, we get:
D) in a cup of boiling water
A) in a bowl of hot soup (its temperature is above ambient but not enough to boil its water)
C) in a glass of tap water (ambient temperature)
B) in a glass of iced tea (below ambient temperature)
Therefore, in option D the molecules move faster.
