What happens when a neurotransmitter is released from a presynaptic neuron,but it does not fit into a suitable receptor channel on the postsynaptic neuron

A)  The firing potential of the postsynaptic neuron will not be affected. 
B)  An inhibitory postsynaptic potential will be generated. 
C)  A graded potential will be generated. 
D)  The presynaptic neuron will be inhibited.

Presynaptic Neuron

A neuron that sends a signal to a neighboring neuron across a synapse, typically releasing neurotransmitters.

Neurotransmitter

Chemicals released by neurons that transmit signals across a synapse from one neuron to another, playing key roles in shaping everyday functions and behaviors.

Postsynaptic Neuron

The neuron that receives a signal (neurotransmitter) from another neuron at a synapse.