Artificial selection to obtain cows yielding higher milk output represents

Options

A. Stabilizing selection as it stabilizes a character in the population.
B. Directional as it pushes the mean of a character in one direction
C. Disruptive as it splits the population into the one yielding higher output and the other lower output
D. Stabilizing followed by disruptive as stabilizes the population to produce high yielding cows.

Answer

B