Compared to Type 1 (Slow Oxidative)skeletal Muscle Fibers,how Are Type

Multiple Choice

Compared to type 1 (slow oxidative) skeletal muscle fibers,how are type 2X (fast-glycolytic) skeletal muscle fibers different?

A) Type 2X fibers have more abundant mitochondria.
B) Type 2X fibers fatigue more readily.
C) Type 2X fibers have more abundant myoglobin.
D) Type 2X fibers are smaller in diameter.
E) Type 2X motor units contain fewer fibers per alpha motor neuron.