With regard to skeletal muscle, which is INCORRECT?

• A. the terminal cisterns of sarcoplasmic reticulum lie in contact with T tubules
• B. the T tubules surround the muscle at its Z lines
• C. the Z line lies within the I band
• D. the M line is due to a central bulge in each of the thick filaments
• E. the area between two adjacent Z lines is called a sarcomere