In Benjamin Libet's Experiments, the Timing of Conscious Will Was

In Benjamin Libet's experiments, the timing of conscious will was shown to follow which pattern?

A) brain activity begins, a conscious wish to act is experienced, then behavioral action occurs
B) a conscious wish to act is experienced, brain activity begins, then behavioral action occurs
C) behavioral action occurs, brain activity begins, then a conscious wish to act is experienced
D) a conscious wish to act is experienced, behavioral action occurs, then brain activity begins