As a Result of Receiving Neurotransmitters,the Voltage of a Postsynaptic

Multiple Choice

As a result of receiving neurotransmitters,the voltage of a postsynaptic receptor has become more negative.What will be the result of this change

A)  The presynaptic neuron is less likely to fire again. 
B)  The presynaptic neuron is more likely to fire again. 
C)  The postsynaptic neuron is less likely to fire. 
D)  The postsynaptic neuron is more likely to fire.