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Complete the truth table and determine whether or not

$p\rightarrow q\equiv \mathbin{\sim} q\rightarrow \mathbin{\sim} p$

$p$	$q$	$p\rightarrow q$	$\mathbin{\sim} p$	$\mathbin{\sim} q$	$\mathbin{\sim} q\rightarrow \mathbin{\sim} p$
T	T
T	F
F	T
F	F

Are the two statements logically equivalent?
A. No, the rows are not identical
B. No, the columns are not identical
C. Yes, the rows are identical
D. Yes, the columns are identical

This is an example of which property?
A. Contrapositive
B. Distributive
C. Idempotent
D. Inverse

You can earn partial credit on this problem.