A disgruntled employee executes a man-in-the-middle attack on the company network. Layer 2 traffic destined
for the gateway is redirected to the employee’s computer. This type of attack is an example of:

A.
ARP cache poisoning

B.
IP spoofing

C.
amplified DNS attack

D.
evil twin

Explanation:
https://en.wikipedia.org/wiki/ARP_spoofing