<prompt> Height of child acq uire 100 cm in-2.5 year3.5 year4.5 year5.5 year  <response>: Ans. is c i.e., 4.5 year o A child acquire height of 160 cm by age of 4Yi year.AgeHeightBirth50 cm3 Month60 cm9 Month70 cm1 Year75 an2 Year90 cm4 12 Year100 cm 