A coin is flipped three consecutive times. Which of the following represents the event of getting a head on the first flip? A.{(H,H,H),(H,H,T),(H,T,H),(H,T,T)} B.{(H,H,H),(H,H,T),(H,T,H),} C.{(T,H,H),(T,H,T),(T,T,H),(T,T,T)} D.{(H,H,H)}