What term describes a mutant allele that minimally or does not alter the expression of a trait?

Explanation

A. Reversion refers to a mutation that restores the original phenotype. B. Conditional mutant affects phenotype only under certain conditions. C. Silent mutation changes DNA without affecting phenotype. D. Armor is a mutant allele that has little or no impact on trait expression. E. Neutral allele has no effect but is not the specific term used here.