Indicate Which Type of Muscle Is Associated with the Property

Indicate which type of muscle is associated with the property in question by using the answer code (options may be used more than once or not at all) .
-myosin must be phosphorylated before it can bind with actin

A) skeletal muscle only
B) single-unit smooth muscle only
C) cardiac muscle only
D) skeletal muscle and cardiac muscle
E) skeletal muscle and single-unit smooth muscle
F) single-unit smooth muscle and cardiac muscle
G) skeletal, single-unit smooth, and cardiac muscles