LOLer was chatting online with l$33$ter. "I can't believe how lame some people are! :) I can get into any system by checking out the company website to see how usernames are defined and who is on the employee directory. Then, all it takes is brute force to find the password." LOLer is a $\_\_\_\_\_\_\_\_,$ and the fraud he is describing is $\_\_\_\_\_\_\_\_.$

A$)$ hacker; social engineering

B$)$ phreaker; dumpster diving

C$)$ hacker; password cracking

D$)$ phreaker; the salami technique

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