In contrapositive method to prove statement If p then q is valid or not, we assume p to be __________ and prove q to be ______________

In contrapositive method to prove statement If p then q is valid or

1.	In contrapositive method to prove statement If p then q is valid or not, we assume p to be __________ and prove q to be ______________
A.	true, false
B.	true, true
C.	false, false
D.	false, true
Answer» D. false, true