Which of the following is an example of an active attack?

Which of the following is an example of an active attack? Select one.

A.
Traffic analysis

B.
Masquerading

C.
Eavesdropping

D.
Shoulder surfing

Explanation:
Shoulder surfing is passive, like eavesdropping and traffic analysis.
Masquerading is the only one where you are actually doing something by changing something –
actively doing something.