Answer - A. Mating Must occur randomly
Reasoning - Since mating must occur randomly are helps with the balance or equilibrium in genetic without any changes within that population since we do not want genetic drift, mutation and especially do not want any foreign or different species mating with the species we are targeting. So A is your best answer.
Wear gloves ,goggles,clean every thing after you leave , also use specific clothes
There would be a 1:1 ratio of rr in the offspring
The bones and skin protect the animal body