What enables bones to perform movement?
Options:
- (A) contraction
- (B) Energy
- (C) sensory neurons
- (D) looseness
- (E) Chemical energy
- (F) Vibrates
- (G) fur and fat
- (H) layers of fat OK. Let's think hard:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Muscles can only contract. Bones work with muscles to perform movement. Contraction enables bones to perform movement.
So, the final answer is (A).