Which of the Following Statements Is Not True

Which of the following statements is not true?

A) Children raised by parents educated and working as professionals, on average, ask teachers more questions than children reared by working class parents.
B) Surprisingly, children from working class families tend to have the same number of books in the home as children from upper-middle class families.
C) On average, parents who are professionals speak more than 2,000 words per hour to their children.
D) On average, working class parents speak about 1,300 words per hour with their children.
E) On average, welfare-recipient mothers speak about 600 words per hour with their children.