Answer:
Answer is Option D: the concept of long-term potentiation
Explanation:
Neurons work with each other through electrical events. At synapse, which is the "junction" between two neurons, a chemical neurotransmitter is released by neuron A , caused by an action potential.
Memory is often described as a function of brain cells which form connections by getting together. "Long-term Potentiation (LTP)" is a constant increase in strength after a high frequency chemical synapse. Thus, this is the concept of LTP says that if two neurons "activate" at a given time, then the "connection" between them will increase and as a result the memory will also get strengthened.