The Difference Between a Symbol and a Sign Is

The difference between a symbol and a sign is:

A) a symbol has connection to what it signifies, while a sign does not.
B) a sign has a connection to what it signifies, while a symbol does not.
C) symbol is an archaeological term that refers to prehistoric behavior, while sign is an ethnographic term that refers to the behavior of living people.
D) there is no difference between them; symbol and sign are terms that are use interchangeably.