A soybean farmer has developed a soybean plant that is healthier, taller, greener, and

A soybean farmer has developed a soybean

plant that is healthier, taller, greener, and more
productive than other soybean plants. Which
process caused the traits in these new soybean
plants?
A. Mutating
C. Genetic isolation
B. Crossbreeding
D. Natural selection