Artificial selection to obtain cows yielding higher milk output represents

Options

A. stabilizing selection as it stabilizes this character in the population
B. directional as it pushes the mean of the character in the population
C. disroptive as it splits the populaiton into , one yielding higher output and the other lower output
D. stabilizing followed by distruptive as it stabilized the population to produce higher yielding cows.

Answer

B