下列哪种牙龈炎又称奋森龈炎（）

A.青春期龈炎

B.妊娠期龈炎

C.急性坏死性溃疡性龈炎

D.药物增生性龈炎

E.慢性牙龈炎

— What are you doing Thursday afternoon?

— I have ________ homework. [ ]

A. too much

B. much too

C. too many

D. a lot