Rigor mortis i.e, stiffening of body after death results from__________??

Biology Mcqs
BILAL KHATTAK0

A. Accunulation of rigid proteins molecules in sarcoplam. 
B. Unavailability of ATP, which is necessary to break the link between actin and myosin. 
C. Decrease in body temperature after death.
D. Death of tissue due to unavailability of O2.

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