Which of the following vertices have degree 2? 
Definitions:
Easygoing Temperaments
Refers to personality traits characterized by calmness, flexibility, and a relaxed approach to life.
Wary of Strangers
A cautious or suspicious attitude towards unfamiliar people, often considered a natural or learned protective response.
Months of Age
A unit of time used to describe the age of a person, particularly infants and young children, in terms of months rather than years.
Contact Comfort
The psychological and physical comfort that an individual experiences from touching or being in close physical contact with others, especially significant in the context of infant-caregiver attachment.
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