Hannah, age 4, loves to color in her coloring book for long periods of time. She is also very engaged with her fellow preschoolers when class projects are given. According to Mary Rothbart, what type of temperament dimension is Hannah MOST likely displaying?

A. positive affect

B. fearful distress

C. activity level

D. attention span

Answer: D) Attention span

Explanation: Attention span is the amount of time that is spent on any subject or task without getting distracted by any other subject. It is the concentration time period of an individual. As soon as the person gets diverted towards other sensation, the concentration is broken.

According to the question, Hannah is displaying the feature of attention span by being dedicated and focused towards her project and coloring activity.

Other options are incorrect because activity level displays the amount of active lifestyle of an individual. Positive affect is good impact. Fearful distress is feeling of frightful suffering.

Thus, the correct option is option (D).