Children Perform Better in School When School Start-Times Are Later

Multiple Choice

Children perform better in school when school start-times are later in the day. The reason is that later in the day

A) the students' arousal level is lower
B) the students had time to eat breakfast and have more mental energy
C) the students were more melancholic, which helps in paying attention
D) the students' arousal is closer to their preferred level of arousal