This development likely occurred at AGE ONE. Most child are ready for day care at age one. At age one, the child is already developing in language, social and motor skills. It is the developmental stage when the child is ready to learn and explore. At the same time, at this age most babies are still anxious about been separated from their mothers and will cry at any attempt to drop them for strangers or at daycare.
#1 would be A, #2 would be false, as narcotics are incredibly addictive. #3 is absolutely true, as abuse of almost any medical thing can be life threatening.
