Pollack and Pickett's Experiment on Understanding Speech Found That When

Pollack and Pickett's experiment on understanding speech found that when participants were presented with individual words taken out of conversations (single words presented alone with no context) , they could identify

A) 100 percent of the words spoken by their own voices.
B) 50 percent of the words spoken by their own voices.
C) 50 percent of the words spoken by others with an accent similar to theirs.
D) none of the words spoken by others.