How is persistence configured?

A.
Persistence is an option within each pool’s definition.
B.
Persistence is a profile type; an appropriate profile is created and associated with virtual server.
C.
Persistence is a global setting; onceenabled, load-balancing choices are superceded by the persistence
method that is specified.
D.
Persistence is an option for each pool member. When a pool is defined, each member’s definition
includes the option for persistence.