How should the BIG-IP Administrator modify the persistence profile so that each unique IP address creates a persistence record?

An LTM device has a virtual server mapped to www5f.com with a pool assigned.

The objects are defined as follows:

Virtual server. Destination 192.168.245.100.443 netmask 255.255.255.0

Persistence: Source address persistence netmask 255.0.0.0

SNAT:AutoMap

Profiles: HnP/TCP

How should the BIG-IP Administrator modify the persistence profile so that each unique IP address creates a persistence record?
A . netmask 0.0.0.0
B . netmask 255.255.255.255
C . netmask 255.255.0.0
D . netmask 255.256.255.0