Hybrid zones occur when two populations that share a common ancestor and are on their way to speciating come into contact and form hybrid organisms. Which of the following would represent reinforcement of speciation, fusion in the hybrid zone, stability of the hybrid zone, none of the above.

hybrids show reduced fitness ______

Hyrbrids are fertile and as fit as the parents but do not breed with each parent group.

a. reinforcement

b. fusion

c. stability

d. none of the above