What is the network address for the host with IP address 192.168.23.61/28?

What is the network address for the host with IP address 192.168.23.61/28?

A.
192.168.23.0

B.
192.168.23.32

C.
192.168.23.48

D.
192.168.23.56

E.
192.168.23.60