Leo Argues That One of the Reasons Why the United

Leo argues that one of the reasons why the United States far surpasses the rest of the world in prescribing Ritalin is due to which of the following statements?

A) since American drug companies manufacture these drugs, it is not surprising that the U.S. is where most of these drugs are prescribed.
B) insurance companies in the United States pay for the Ritalin prescriptions to young children, whereas this is not the case in other countries.
C) the prescribing of Ritalin in the United States is due to the value system in this country that advocates social control as an important factor in raising children.
D) the United States is the only country that even allows the prescribing of Ritalin to young children, so it is no surprise that it happens more in the U.S. than anywhere else.