Maris is inactive, shows mild, low-key reactions to environmental stimuli, and adjusts slowly to new experiences. According to Thomas and Chess, Maris would be classified as a(n) child. Group of answer choicesA) uninhibited
B) difficult
C) slow-to-warm-up
D) inhibited

The correct answer is letter C) slow-to-warm-up.

Explanation:

Temperament can be defined as the individual differences concerning motor reactivity, self-regulation and emotions. Such characteristics are consistent across situations and over time. According to Thomas and Chess, there are three general types of temperament in children. Easy children adjust to new situations and are active and happy since birth. Difficult children do not adjust easily, express negative moods intensely, and present irregular routines. They are hard to satisfy. Slow-to-warm-up children are less active babies since birth, and they can show some difficulty adjusting to new situations. As we can see, this last description matches what was said about Maris. She is inactive and shows low-key reaction to stimuli. Maris is a slow-to-warm-up child.