单项选择题

What does the word "cold-calling" most probably mean
A) Working in a bad weather. C) Making no friends among the clients.
B) Being unfriendly to clients. D) Getting no response from a client.

A.What does the word "cold-calling" most probably mean
B.Working in a bad weather.
C.Being unfriendly to clients.
D.Making no friends among the clients.
E.Getting no response from a client.