Question: The Slow-to-Warm-Up Child is: A child who learns to sleep through the night, generally cheerful, and expresses their distress mildly A child who expresses an unpleasant or disagreeable mood through a temper tantrum, is full of zest, and has irregular bowel movements A child who has discomfort with the new and adapts slowly, may be invisible in a group, and is typically labeled as "shy" All of the above. Need Assignment Help?