The 3M tagline "Innovation" is considered great, for it manages to blend in the line their ______.

A．She conducted the classical chapters pretty well.
B．The chapters she composed and conducted were all in harmony.
C．She composed the harmonious chapters by herself.
D．The classical chapters composed by her were in harmony.

A．Because he dozes off in class so his notes are poor.
B．Because his vision is getting worse.
C．Because he has missed a couple of classes.
D．Because he is a very lazy student.