How many muscles work together to move a bone?
Two
The correct option is B:
Explanation of the correct option:
Explanation of the incorrect option:
Option A:
The movement of the bone is controlled by two muscles, not one muscle.
Option C:
The movement of the bone is controlled by two muscles, not three muscles.
Option D:
The movement of the bone is controlled by two muscles, not four muscles.
Final answer: Two muscles work together to move a bone.