Interneurons are crucial components of the nervous system, playing a significant role in the communication between sensory and motor neurons.
The correct statement is: b) they are contained entirely within the CNS and carry signals from one neuron to another.
Interneurons are found in the central nervous system (CNS) and are responsible for integrating information from various sources, facilitating communication between sensory inputs and motor outputs. Unlike sensory neurons that send signals to the CNS from the body or motor neurons that carry signals from the CNS to muscles and glands, interneurons act as connectors. They process the information and help manage reflexes, decision-making, and higher cognitive functions.
Invalid options are: a) which describes the function of motor neurons, and c) which incorrectly states that interneurons cannot process, store, and retrieve information – in fact, they are essential for these processes within the CNS.