The Muscles of a Recently Deceased Animal Can Remain in a Contracted

The muscles of a recently deceased animal can remain in a contracted state,termed rigor mortis,for several hours due to the lack of

A) phosphorylated myosin.
B) ATP needed to break actin-myosin bonds.
C) calcium ions needed to bind to troponin.
D) oxygen supplies needed for myoglobin.
E) sodium ions needed to fire action potentials.