Given an experiment in which a fair coin is tossed three times, the sample space is S={HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}. Define event A as tossing one head (H). What is the event A^c and what is the probability of this event.

A. A^c = {TTT, HHT, HTH,THH, HHH}; P(A^c) = 0.625

B. A^c = {TTT, HHH, HTH}; P(A^c) = 0.375

C. A^c = {TTT, THH, HHH, HHT}; P(A^c) = 0.500

D. A^c = {TTT, HHH,HHT, HTH, HTT}; P(A^c) = 0.625