Figure Q17-57 shows an electron micrograph of a skeletal muscle fiber, where various points along a fiber and various regions have been labeled.Which of the following statements is true about muscle contraction?

Figure Q17-57 shows an electron micrograph of a skeletal muscle fiber, where various points along a fiber and various regions have been labeled.Which of the following statements is true about muscle contraction?



(a) Point A will move closer to point B.
(b) Point B will move closer to point C.
(c) Region D will become smaller.
(d) Region E will shrink in size.



Answer: 




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