What problems need to be solved?

First problem, who gets to play God? The second problem would be the question of exactly what clones owe society. Do they owe anyone? Must they be sacrifices? The concepts in this novel are actually pretty frightening; they're also quite thought provoking.

These problems are detailed in Gradesaver's themes for this novel. I have provided the direct link below.

http://www.gradesaver.com/never-let-me-go/study-guide/major-themes/