Read the given statements and select the correct option. (i)Synaptic cleft of neurons secreates adrenaline. (ii)Myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon. (iii)Non-myelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath. (iv)Spinal and cranial nerves are made of non-myelinated nerve fibres.A. I, II are correct, but III and IV are incorrectB. I, II and III are correct but IV is incorrectC. III and IV are correct, but I and II are incorrectD. II and III are correct, but I and IV are incorrect

Read the given statements and select the correct option. (i)Synaptic c

1.	Read the given statements and select the correct option. (i)Synaptic cleft of neurons secreates adrenaline. (ii)Myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon. (iii)Non-myelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath. (iv)Spinal and cranial nerves are made of non-myelinated nerve fibres.A. I, II are correct, but III and IV are incorrectB. I, II and III are correct but IV is incorrectC. III and IV are correct, but I and II are incorrectD. II and III are correct, but I and IV are incorrect
Answer» Correct Answer - D