The following represents what functional group? 
Definitions:
Severe Stress
An excessive level of stress that can lead to physical and psychological health problems, often resulting from significant life changes or challenges.
Buffer
A solution that resists changes in pH when acids or bases are added to it, or a person or thing that reduces the effect of a shock or disturbance.
Shared Activities
Tasks or leisure pursuits undertaken together by individuals, fostering social bonds and collaborative skills.
Joint Attention
A social-communication skill in which two people use gestures and gaze to share focus on an object or activity.
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