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which of the following best explains how genetic recombination influences evolution?

a. The process of genetic recombination results in only those traits that provide is a productive advantage being passed down to future generations.

b. Genetic recombination occurs only in small breeding populations and always results in the loss of favorable alleles from the population.

c. New alleles that were not previously present within a population can only be introduced through the process of recombination.

d. The genetic variation introduced during recombination provides new allelic combinations for natural selection to act upon.