The sentence says that Morrison and Bradley address the relationships
between myth and history: that means that the people who embark on the
“archetypal quest for selfhood” would be trying to uncover some sort of
balance between their cultural identity as Blacks and their own personal
identity (a cultural myth is any idea/truth that belongs to a certain group
of people, and histrory deals with actual people or actual individuals
in the greater scheme of the cultural myth).
(C)