The age at which the infant can reach an object,grasp it and bringit to mouth and seems exited when see the food is

(A). By this age he also able to lifts head and chest, With head in approximately vertical axis; achieve no head lag when pulled to Sitting posiItion, enjoys sitting with full truncal support when held erect, pushes with feet when sees raisin, but makes no move to reach for it, laughs out loud; and may show displeasure if social contact is broken