How might this latency impact the employees when they try to make an outgoing phone call?

A company has 50 employees and all have Cisco IP phones. One employee notices high latency (more than 250 ms one way) on the IP network.

How might this latency impact the employees when they try to make an outgoing phone call?
A . The voice quality cuts in and out
B . The call fails with a busy signal
C . The voice quality sounds like it is under water
D . The conversation has delays and interruptions

Answer: D