LIFE SCIENCE

Detailed explanation-1: -The correct option is B Out crossing. Out crossing is the crossing of unrelated pure breed animals of different traits within the same breed. When animals within the same breed having no common ancestors on either side of their pedigree up to 4-6 generations are mated. The resultant offspring is known as an outcross.

Detailed explanation-2: -Crossbreeding are matings between animals of different breeds or lines. Crossing of animals of different breeds is systematic mating of animals of different breeds as part of a well-designed breeding program.

Detailed explanation-3: -Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.