What constitutes a breeding trio of rabbits?

A breeding trio of rabbits is defined as 1 buck and 2 does. This configuration is essential for effective breeding because the buck (male rabbit) can mate with the two does (female rabbits). This setup maximizes the chances of successful breeding and allows for a greater number of offspring, as one male can mate with multiple females.

In contrast, the other options do not meet the criteria for a breeding trio. For instance, having 2 bucks and 2 does leads to potential competition between the bucks and does not ensure that each female is paired with a single male when it comes time for breeding. Similarly, 3 does alone do not provide any mating opportunities since there is no buck present to facilitate breeding. Lastly, having only 1 doe and 1 buck would not be considered a trio since it only accounts for two rabbits rather than the required three. Thus, the combination of one buck and two does is efficiently designed for breeding purposes and represents the correct definition of a breeding trio.