A female child has recently learned to eat with spoon without spiting, to dress and undress herself with supervision and to understand that she is a girl. These skills are first mastered between the ages of –

A child learns to feed herself with spoon without spilling its contents by the age of 15 months. A child can dress or undress herself completely by the age of 3 years. A child knows his gender by the age of 3 years. So, the given milestones develop between the age of 15 months and 3 years. Amongst the given options best answer is 'a' i.e., 2 and 3 years.