<prompt> Arrange the above milestones in ascending order of appearance starting from earliest to later milestones:D - A - C - BD - C - A - BA - C - D - BA - D - C - B  <response>: a. D - A - C - BRef: Nelsons 20e p 65-77, Ghai 8e p 45-49A. shows mouthing that comes at 5 months.B. shows spontaneous scribbling, that appears at 15 months.C. shows Pivotting that appears around 7 months.D. shows rounded back on made to sit, that is seen at 3 months.So, the correct sequence of the given milestones is D - A - C - B. 