Task: Question Answering
Input (English): Background Paragraph: Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically.[2] By analogy, the term is used in human reproduction, but more commonly refers to the genetic disorders and other consequences that may arise from expression of deleterious or recessive traits resulting from incestuous sexual relationships and consanguinity.

Inbreeding results in homozygosity, which can increase the chances of offspring being affected by deleterious or recessive traits.[3] This usually leads to at least temporarily decreased biological fitness of a population[4][5] (called inbreeding depression), which is its ability to survive and reproduce. An individual who inherits such deleterious traits is colloquially referred to as inbred. The avoidance of expression of such deleterious recessive alleles caused by inbreeding, via inbreeding avoidance mechanisms, is the main selective reason for outcrossing.[6][7] Crossbreeding between populations also often has positive effects on fitness-related traits,[8] but also sometimes leads to negative effects known as outbreeding depression. However increased homozygosity increases probability of fixing beneficial alleles and also slightly decreases probability of fixing deleterious alleles in population.[9] Inbreeding can result in purging of deleterious alleles from a population through purifying selection.[10][11][12]. 
Story: Ralph owns a farm with a small population of cows on it. He needs to breed them to expand his population but is unsure how to do it. He finds out that most of his cows are closely related in some way and has a small amount of diversity. His friend from another farm however has a diverse set of cows and offers to help with Ralph's breeding problem for an extra cost. 
Question: If Ralph wants to avoid inbreeding, what solution should he go for in his breeding practices; use his own cows, or pay his friend for help?
Output (English): pay his friend for help.