What Is the Event " Getting at Least One Tails " for the Experiment

Multiple Choice

What is the event " getting at least one tails " for the experiment of tossing a coin twice?

A) E = { (T, T) , (H, T) , (T, H) }
B) E = { (H, H) , (H, T) , (T, H) , (T, T) }
C) E = { (H, H) , (H, T) , (T, H) }
D) E = { (H, T) , (T, H) }