Response:
C. Utilizing public-key encryption for data transfer
Reasoning:
Only encryption offers a secure method for communication.
The phrases "or 1=1" and "or ''=''" are typical examples used to manipulate an SQL WHERE clause into evaluating as true.
Consequently, if you type in <span>' or ''=' as your password, you can authenticate if the query would be:
</span><span>select username,pass from users where username='you' and password='' or ''='<span>' limit 0,1;</span></span>