In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

This argument is completely _______(1)_______ and shows very little understanding ______(2)______ education. The costs quoted for private schools, one, have no reliable source of data and, _______(3)_______, they discount two kinds of hidden costs — to the family and ______(4)_______ the nation. Often the cost of education in private schools is ______(5)___________ with the fee per child.