Determine whether each of the following graphs has a Hamiltonian circuit. If it does have an Hamiltonian circuit, find such a circuit. If it does not have an Hamiltonian circuit, explain why you can be 100% sure that it does not. 
Definitions:
Temperamental Differences
Variations among individuals in their emotional and behavioral responses due to differing inborn temperaments.
Authoritative Parents
Parenting style characterized by high expectations, understanding, and support, balancing strict rules with emotional warmth and autonomy for the child.
Permissive Parents
A parenting style characterized by the high responsiveness and low demands, where parents are lenient and avoid imposing rules.
Authoritarian Parents
Parents who enforce strict obedience to their authority, often at the expense of personal freedom.
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