NEED HELP! What statement is the contrapositive of p?

p: If we win the game today, then we will win the tournament.

A.
If we win the game today, then we won’t win the tournament.
B.
If we win the tournament, then we won the game today.
C.
If we don’t win the game today, then we will not win the tournament.
D.
If we don’t win the tournament, then we didn’t win the game today.
E.
If we don’t win the tournament, then we won the game today.