Nain is a front-desk receptionist at a large corporation. After a recent payday for the employees,
Nain received a phone call from someone claiming to be an employee who was out-of-state on an
assignment. This person asked Nain whether his check had been deposited, and to verify that the
check was written to a specific account name and bank routing number. This occurrence may be a
type of attack known as a:

A.
denial-of-service attack.

B.
social-engineering attack.

C.
pharming attack.

D.
phishing attack.