Ineed plzzz i'm taking a test

a. crossing over
b. genetic drift
c. law of dominance
d. random segregation
e. independent assortment
sexual reproduction promotes genetic variation. one way variation occurs is via the production of gametes during meiosis. sexual organisms are the product of sperm and egg, receiving chromosomes from both parents. but what mechanisms are at work during meiosis to promote genetic variation? review the prompt and select all that apply.
a) a and b
b) a, d, e
c) a, b, c, e
d) a, b, c, d, e