Answer:
D) ATP
Explanation:
Rigor mortis
Rigor mortis also called postmortem rigidity ,
It is the third stage of death .
The signs of death are , due to chemical change , stiffening of the limbs of the corpse .
In human beings , rigor mortis occurs around four hours after the death .
The stage of rigor mortis occurs due to lack of ATP ,
because of the lack of ATP , there is no myosin shifts so muscles remain contracted .
