Nonstrategic, routine behaviors that couples perform, such as using humor or joking, self-disclosure, and positivity, are examples of
a) initiating behaviors
b) de-escalation behaviors
c) relational maintenance behaviors
d) terminating behaviors

Nonstrategic, routine behaviour that couples perform, such as using humour or joking, self-disclosure, and positive, are examples of relational maintenance behaviours

C. relational maintenance behaviour.

Explanation:

In every relationship, people will deliver many kinds of behaviours. They put some effort among themselves to show how they really feel or want. This kind of behaviour expressing to maintain in a relationship is known to be relational maintenance behaviour.

It consists of 5 behaviours they are: positivity, Openness, commitments, socially connecting and shared tasks. In the early stage of maintenance behaviour, people will be more positive about themselves so that it will make a good impression of them.

And they will try to be more humorous so that the conversation won't be boring at all. Finally, Openness to tell them how they feel about anything or what to share about anything etc.

the density would be a smaller number.

glass wants to live in a world of super heroes and villains. he have lived all his life trying to be responsible for the creating the origin story of a super hero; he schemed and caused many incidents (many of them fatal) hoping that someday someone with superpowers would show up and save the day.

he knew himself very much. he saw himself as a villain of a real-life super hero story. he was aware of his strengths (more than smart enough for being manipulative and scheming) and weaknesses (having fragile bones and having to rely on his mind to succeed).