Mr King Runs a Tight Ship in His Middle School

Mr. King runs a tight ship in his middle school math classes. At the beginning of each class, he gives a ten-minute explanation of a new concept or procedure, and then he hands out worksheets that students complete independently at their desks. Which one of the following students has a temperament that is probably the best match with Mr. King's classroom?

A) Grant loves risk and adventure.
B) Donna is cheerful and outgoing.
C) Fiona is always full of energy.
D) Jayson is quiet and diligent.