Puppies Born Too Large Experience Difficulties in Birthing and Tend

Multiple Choice

Puppies born too large experience difficulties in birthing and tend to have respiratory and other problems.Puppies born too small often can't compete with their siblings for their mother's milk.Thus,puppies born not too large or too small have a survival advantage.This is an example of ___ selection.

A) directional
B) stabilizing
C) disruptive
D) frequency
E) more than one of these types of