Artificial selection to obtain cows yielding higher milk output represents

Options

A. Stabilizing selection as it stabilises this character in the population.
B. Directional as it pushes the mean of the characters is one direction.
C. Disruptive as it splits the population into two one yielding higher output and the other lower output.
D. Stabilising followed by disruptive as it stabilises the populatino to produce higher yielding cows.

Answer

B