An Increase in Smooth Muscle Tension Can Occur at a Given

An increase in smooth muscle tension can occur at a given intracellular [Ca⁺⁺] in response to:

A) Opening of K⁺ channels in the smooth muscle membrane.
B) Inhibition of myosin phosphatase by Rho kinase in the smooth muscle.
C) Cyclic adenosine monophosphate (cAMP) -dependent phosphorylation of myosin light-chain kinase in the smooth muscle.
D) Release of nitric oxide from adjacent endothelial cells.
E) Hyperpolarization of the smooth muscle membrane.