The autonomic nervous system is most directly involved in

The autonomic nervous system is most directly involved in D. Digesting food.

The autonomic nervous system refers to the part of the peripheral nervous system that's vital for the regulation of blood pressure, heart beat, respiration, digestion, etc.

It should be noted that the autonomic nervous system consists of the sympathetic, parasympathetic, and the enteric nervous system.

Therefore, based on the options given, the autonomic nervous system is involved in the digestion of food.

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The given question is incomplete as it lacks the required options however the options are given as follows:

A. driving a car

B. reading a textbook

C. sensing painful stimuli

D. digesting food

E. experiencing pain

The correct answer is option D. digesting food.

Explanation:

The autonomic nervous system is nervous system that acts on the involuntary actions and bodily functions such as respiration, blood pressure, digestion, sexual arousal and many more.

It has two components that are antagonist to one another and name as parasympathetic and sympathetic nervous system. These nervous system are controlled effortlessly without any intention to do these organ functions. Digestion is the process that is controlled by the autonomic nervous system as it is affects the ion transport, motility and GI blood flow.

Thus, the correct answer is - option D.

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