Eycine operates the telephone switchboard at a large company, answering calls and directing them to the appropriate extensions. remembering her introductory psychology class, she decides that her situation is much like the of neurons because numerous people can call her at one time, but she can send out only one call at a time.

The answer is "dendrites and axons".

The nervous system is such a fascinating and wide subject, and one of its orders is the comprehension of nerve cells, or all the more basically called, neurons. There are two sections of nerve cells engaged with the conduction of these nerve motivations. They are the axons and the dendrites.  

Dendrites get electrochemical driving forces from different neurons, and convey them inwards and towards the soma, while axons carry the impulses from the soma.  

the 2nd option is the answer

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