Biology

The correct answer is: A.Short distance.

Explanation:

Neurotransmitters typically act over short distances. They are chemicals that transmit signals across synapses, which are the small gaps between neurons or between a neuron and a target cell (such as a muscle or gland cell). When a neuron sends an electrical signal (action potential), neurotransmitters are released into the synaptic cleft, where they bind to receptors on the adjacent cell to transmit the signal. This process occurs over a very short distance, usually just a few micrometers, the distance of the synapse.

Why the other options are incorrect:

B.Long distance: Neurotransmitters do not act over long distances. Long-distanc...