Which Statement About the Structure of Skeletal Muscle Is True

Multiple Choice

Which statement about the structure of skeletal muscle is true?

A) The light bands of the sarcomere are the regions where actin and myosin filaments overlap.
B) When a muscle contracts,the A bands of the sarcomere lengthen.
C) The actin filaments are anchored by titin molecules to the Z lines.
D) When a muscle contracts,the H zone of the sarcomere shortens.
E) The sarcoplasm of the muscle cell is contained within the sarcoplasmic reticulum.