Assertion $(A) :-$ Impulse transmission across an electrical synapse is always faster than that across a chemical synapse.
Reason $(R) :-$ Electrical current can flow directly from one neuron into the other across electrical synapses.

• A
  Both $(A)$ and $(R)$ are correct but $(R)$ is not the correct explanation of $(A)$
• B
  $(A)$ is correct but $(R)$ is not correct
• C
  $(A)$ is incorrect but $(R)$ is correct
• D
  Both $(A)$ and $(R)$ are correct and $(R)$ is the correct explanation of $(A)$