A Female Rabbit of Phenotype C′ Is Crossed to a Male

A female rabbit of phenotype c′ is crossed to a male rabbit with c^ch.The F₁ is comprised of five rabbits with a c′ phenotype,two with c^ch phenotype,and three with c phenotype.Of the phenotypically c rabbits,two are females and are backcrossed to their father.This cross produces only rabbits with c^ch phenotype.These results suggest that:

A) c could be dominant or recessive to c′.
B) c is dominant to c′,but recessive to c^ch.
C) c is dominant to c^ch,but recessive to c′.
D) c is dominant to both c′ and c^ch.
E) c is recessive to both c′ and c^ch.