Which statement best identifies how the text describes the relationship between bullying and middle school?

A. Bullying only begins to emerge in sixth grade and becomes strongest in eighth grade for boys and girls.
B. Participation in bullying may be part of the process of adapting to the culture of middle school and changes by age and gender through eighth grade.
C. The most serious form of bullying is common throughout middle school and remains a means to seek popularity through eighth grade.
D. Bullying is common throughout middle school but does not become a means to seek popularity until eighth grade.