What is the significance of a dollar sign on a network share name?

When working on a PC, you notice that a network share ends in a dollar sign. The share name is DAILYRPT$. What is the significance of a dollar sign on the network share name?

A) The share is password protected

B) The share is administratively disabled

C) Access to the share is limited to system administrators

D) The share is hidden from any searches over the network