Select correct statement regarding synapses.

Electrical current can flow directly from one neuron into the other across the electrical synapses since the presynaptic and postsynaptic neurons communicate through gap junctions. 

The membranes of presynaptic and postsynaptic neurons are in very close proximity in an electrical synapse.
Chemical synapses use neurotransmitters. 
Impulse transmission across electrical synapses is faster than that across chemical synapses.