An individuated character is one who
a. is a symbol for some characteristic.
b. is able to be identified with the audience.
c. has his or her own unique history and personality.
d. has a series of epiphanies.

An individuated character is one who has his or her own unique history and personality. This means that the character plays a role which is distinguishable from the roles of other characters involved in the story. The audience recognizes this character in a crowd.