Road - to health cha was given by?

Ans. is 'b' i.e., David morley Growth cha Also known as "road-to-health" cha. It was first designed by David morley. It is a visible display of the child's physical growth and development. It is designed primarily for the longitudinal follow-up (growth monitoring) of child. Mostly weight for age is taken into consideration (height is not taken into consideration). This is because weight is the most sensitive measure of growth and any detion from normal can be detected easily by comparison with reference curves. A child can lose weight but not height. The growth cha offers a simple and inexpensive way of monitoring weight gain and infact child health oveime.