Jimmy is standing outside a secure entrance to a facility. He is pretending to have a tense conversation on his
cell phone as an authorized employee badges in. Jimmy, while still on the phone, grabs the door as it begins to
close.
What just happened?

A.
Piggybacking

B.
Masqurading

C.
Phishing

D.
Whaling

Explanation:
In security, piggybacking refers to when a person tags along with another person who is authorized to gain
entry into a restricted area, or pass a certain checkpoint.
https://en.wikipedia.org/wiki/Piggybacking_(security)