Directions: Fill in the blank in each of the following statements with one word, the first letter of which is already given as a clue. Note that you are to fill in ONE word only, and you are not allowed to change the letter given.

The c period hypothesis can be supported with the view that there is considerable cerebral plasticity in the brains of young children. Thus, if a child does not acquire language during this period, for any one of a number of reasons, such as deprivation of environment, he or she is unlikely to learn a language successfully later on.