Final answer:
Somatic functions, which include voluntary movements of skeletal muscles, can be influenced by mood. Stress or anxiety can result in changes in muscle tension, breathing, or posture, demonstrating the effect of mood on somatic functions. Physiological changes during exercise are governed by the autonomic nervous system.
Step-by-step explanation:
The question at hand asks, How are somatic functions affected by a client's mood? The correct answer to this question would be c) Somatic functions may be influenced by mood. Mood, which is a psychological state, can indeed have an impact on somatic functions, which are under the control of the somatic nervous system (SNS). The SNS is responsible for voluntary movements of skeletal muscles, but our mood can influence these functions due to the overall interplay between the psychological and physiological states. For instance, when we are stressed or anxious (moods), we might experience muscle tension, an alteration in breathing patterns, or a change in posture. These are all changes in somatic functions influenced by our mood.
Regarding the physiological changes during exercise such as increased heart rate and sweating, these are controlled by the autonomic nervous system (ANS), not the SNS. The ANS operates involuntarily and manages bodily functions that occur without conscious effort.