Eye Color (Brown or Blue) of a Child Is Determined $b$

Multiple Choice

Eye color (brown or blue) of a child is determined by which of two alleles (B for the dominant brown allele or $b$ for the recessive blue allele) the child receives from each of its parents. A person is considered heterozygous for a trait if their two alleles are different than each other. If two heterozygous parents $(\mathrm{Bb})$ have children, we expect 1 out of every 4 of those children to have blue eyes. How many blue- eyed children would we expect out of 860 children born to two heterozygous parents?

A) 172 blue- eyed children
B) 215 blue eyed children
C) 430 blue- eyed children
D) 645 blue- eyed children