Coin throws

This task is about the chance of heads or tails.

Question

 
A coin is fair if each throw is just as likely to come up heads (H) as tails (T).
 
a)   If a fair coin is thrown 4 times, which is most likely?  

    • A total of 4 heads and 0 tails

    • A total of 3 heads and 1 tail

    • A total of 2 heads and 2 tails

    • They are all equally likely.

Explain the reasons for your choice.