Researchers Collect Data on an Island Population of Frogs and Find

Researchers collect data on an island population of frogs and find a mutation rate of the recessive allele, d, is 1 × 10^{- 6}. The relative fitness of the individuals homozygous from this allele is 0.7. What is the allele frequency of this recessive allele at equilibrium?

A) 3.0 × 10^{- 7}
B) 1.4 × 10^{- 6}
C) 7.0 × 10^{- 7}
D) 1.2 × 10^{- 3}
E) 1.8 × 10^{- 3}