This checks awareness of Microsoft's education focused product launches around 2015.
A: Not a real Microsoft product name.
B: Not a real Microsoft product name.
C: Not a real Microsoft product name.
D (One Note class Notebook): Correct. Microsoft launched "OneNote Class Notebook", a notetaking app for teachers and students built on its existing OneNote platform, as part of its push into education tools.
So the answer is D, OneNote Class Notebook, the real product Microsoft rolled out for classrooms.