17. We understand from the passage that primitive reflexes... A) are a way of lifting babies off the ground.
B) sometimes disappear after six months.
C) are things which we do automatically from the time we are born.
D) are concentrated in the palm of a baby’s hand.
18. It is clear from the passage that -. A)very young babies are sometimes stronger than we might think.
B) only people living in primitive conditions have reflexes.
C) until six months of age babies think their mothers hate fur.
D) human babies are good at hanging on to tree branches.