Select the option that can be used as a one-word substitute for the highlighted group of words.
I suppose dancing that well would require a lot of actual application.

Correct option is C

The correct one-word for the given group of words is (c) practice.
"Actual application" refers to the repeated exercise in or performance of an activity or skill.
Meanings of other options:
• Prevention: the action of stopping something from happening.
• Perseverance: persistence in doing something despite difficulty.
• Perception: the ability to see, hear, or become aware of something.