Sequences of a Mammal Find an Association Between Variants at a SNP

Multiple Choice

Sequences of a mammal find an association between variants at a SNP in an enzyme and coat color.Biologists do not know whether the coat color differences are actually due to that SNP or are just correlated with the SNP and are instead due to other differences.What would be the most appropriate way to find out whether the association between the SNP and coat color was causal?

A) Use CRISPR technology to alter the expression of the gene.
B) Use CRISPR technology to mutate the SNP.
C) Use RNAi to alter expression of the gene.
D) Use RNAi to mutate the SNP.
E) Use antisense RNA to mutate the SNP.