This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Developmental-Behavioral Screening and Surveillance, Subject name: Pediatrics
[{'content': 'Which of the following milestone is achieved at 36 months - \nSelect and explain. \nA. Drawing a rectangle, B. Building a tower of 20 cubes, C. Riding a tricycle, D. Skipping', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Riding a tricycle Milestones seen at 36 monthso Rides tricycleo Stands momentarily on one footo Draws a circle.o Can dress or undress himself completely and succesfully buckles his shoeso Builds tower of 10 cubeso Knows his gender and ageo Repeats a sentence of 6 syllableso Has a vocabulary of 250 wordso Counts 3 objects correctlyo Can withhold and postpone bowel movemento Handedness is established", 'role': 'assistant'}]