Select the Incorrect Statement About Muscle and Muscle Fibers

Select the incorrect statement about muscle and muscle fibers.

A) Long distance runners tend to have more slow-twitch muscle fibers than fast-twitch fibers.
B) A quick contraction and relaxation of an isolated skeletal muscle is called tetanus.
C) Fast-twitch fibers have fewer capillaries and mitochondria than slow-twitch fibers.
D) Slow-twitch muscle fibers have high concentrations of myoglobin.