Many students in Ms. Janklow's class seem to have little intrinsic motivation for learning math, science, or social studies. Their minds are more apt to be on peer relationships (who the "popular kids" are, who bullies whom on the playground, etc.) than on their studies. Without knowing anything else about Ms. Janklow's students, your best guess would be that they are:

A. kindergartners.
B. second graders.
C. fourth graders.
D. seventh graders.