Final answer:
The event of stance phase that begins the forward propulsion of the body is Heel off.
Step-by-step explanation:
The event of stance phase that begins the forward propulsion of the body is Heel off.
During the stance phase of walking or running, the Heel off event occurs when the heel is lifted off the ground, transitioning the body from the propulsion phase to the swing phase. At this point, the body weight is transferred from the hindfoot to the forefoot, allowing the body to push forward with the front leg and continue the forward movement.
So, the correct answer is B. Heel off.