John works as a professional Ethical Hacker. He has been assigned a project to test the security
of www.we-are-secure.com. On the We-are-secure login page, he enters =’or”=’ as a username
and successfully logs in to the user page of the Web site. The We-are-secure login page is
vulnerable to a __________.

A.
Land attack

B.
Replay attack

C.
Dictionary attack

D.
SQL injection attack

Explanation: