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A : Transmission of the nerve impulse a...

A : Transmission of the nerve impulse across a synapse is accomplished by neurotransmitters .
R : Transmission across a synapse usually requires neuro transmitters because there is space , i.e., synaptic cleft, that separates one neuron from another .

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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A
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