According to the Department of Education,American Students Seem to Do

According to the Department of Education,American students seem to do more poorly than Japanese students because

A) American students spend more time watching television.
B) Japanese students spend more class time on science and math.
C) Japanese teachers are more likely to develop math concepts in the classroom,whereas American teachers simply state the concepts without developing them.
D) American students spend more time watching television and Japanese students spend more class time on science and math are correct.