Which alternative hypothesis is made far less likely by having three r and k lines, rather than one of each? which alternative hypothesis is made far less likely by having three r and k lines, rather than one of each?

the difference between the r and k lines arose through gene flow.

the difference between the r and k lines arose through a random process such as genetic drift.

the difference between the r and k lines is the result of environmental differences in the food availability of their habitats.

the difference between the r and k lines is the result of different for allele frequencies between the population groups.