Newborn Herring Gulls Immediately Peck on the Red Mark of the Mother's

Newborn herring gulls immediately peck on the red mark of the mother's bill,which triggers the regurgitation of food so that the young hatchlings can eat.This behaviour increases the likelihood of survival,therefore it is deemed to have _______________ .

A) low spontaneous significance
B) high adaptive significance
C) low instinctual drift
D) high discrimination