Which Statement Concerning Cross Bridges Is Correct

Which statement concerning cross bridges is correct?

A) They extend between the A and I bands and bend to pull the bands together during muscle contraction.
B) They are formed by the spherical actin molecules.
C) They extend from the thick filaments and bind to actin, then bend to pull the thin filaments in closer together during muscle contraction.
D) The A band is shorter.

Correct Answer:

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