Question

Check my answer??
Read the proposition and the implication shown below:

"If the shelf door is open, the money is stolen."

Which statement is a contrapositive to the proposition and logically equivalent to it?

If the money is not stolen, the shelf door will be closed.
If the shelf door is open, the money has not been stolen.
If the money has been stolen, the shelf door will be open.
If the shelf door is not open, the money has not been stolen.
Would it be "A"??

Answer 1

it is A. that's the only one that is the opposite

Answer 2

Okay thank you so much. these confuse me a lot!