Over the years, a Mexican wolf population in an area of Arizona became severely depleted. The U. S. Fish and Wildlife Service put in place a program to breed wolves and release them into the wild. A survey of the Mexican wolf population since the program’s introduction in 1998 is shown (see the picture). The expansion of the Mexican wolf population in Arizona raises the possibility of the formation of a hybrid zone with coyotes along the boundaries of their range. Which statement, if true, would most likely result in the formation of a stable hybrid zone?

A. Coyote-wolf hybrids are less fit in the hybrid zone than either parental species.

B. Coyote-wolf hybrids are more fit in the hybrid zone than either parental species.

C. Coyote-wolf hybrids are less fit outside the hybrid zone than either parental species.

D. Coyote-wolf hybrids are more fit outside the hybrid zone than either parental species.