When Dean Ornish placed cardiac patients on a diet that allowed only 10% of calories from fat, he found​

A) ​a higher mortality rate among those participants than among a control group.
B) ​lower mortality rates for the experimental group, but no regression in coronary artery plaque.
C) ​most patients in the experimental group reduced the plaque in their coronary arteries.
D) ​drugs were more effective than diet was for reducing coronary artery plaque.