Select the total number of true statements from the following.

(1) There are two types of synapses, namely electrical synapses and chemical synapses.

(2) Electrical synapses are rare in our system.

(3) At chemical synapse, the membranes of pre- and post-synaptic neuron are in very close

proximity.

(4) Transmission of an impulse across electrical synapses is very similar to impulse conduction

along a single axon.

(5) At a chemical synapse, the membrane of the pre- and post-synaptic neurons are separated

by a fluid-filled space called synaptic cleft.