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