According to the Hebbian Learning Rule,if an Axon of Cell

According to the Hebbian learning rule,if an axon of Cell A is near enough to repeatedly stimulate Cell B (causing it to fire often) ,then what will happen to Cell B

A)  Cell B will eventually stop responding to Cell A. 
B)  Cell B will merge with Cell A. 
C)  Cell B will be pruned because it is redundant with Cell A. 
D)  Cell B will become more likely to fire in response to signals from Cell A.