If a woman inherits one mutant BRCA allele, what are her chances of developing breast cancer?

If a woman inherits one mutant BRCA allele, what are her chances of de

1.	If a woman inherits one mutant BRCA allele, what are her chances of developing breast cancer?
A.	0.6
B.	0.3
C.	0.1
D.	none
Answer» B. 0.3