亚急性细菌性心内膜炎时，下述病变哪一项是错误的（）

A.皮肤黏膜出血点

B.皮肤环形红斑

C.脾脏肿大

D.心瓣膜赘生物

E.肾梗死

— Is there anything else I can get for you except the scarf?

— No. That _____ be it. Thanks a lot. [ ]

A. could

B. must

C. should

D. might