Which of the following best compares the effects of artificial selection and gene flow on the genetic makeup of a population? ( 2 points) Select one:a. Artificial selection and gene flow are both random, but artificial selection decreases genetic variation and gene flow increases it.b. Artificial selection and gene flow are both selective, but artificial selection increases genetic variation and gene flow decreases it.c. Artificial selection is random and increases genetic variation, while gene flow is selective and decreases it.d. Artificial selection is selective and decreases genetic variation, while gene flow is random and increases it.