—Good evening, Mr. Green. I'm sorry to bother you. But it's the fourth of December today.

—Oh, Mrs. Baxter, _____ rent! I'm sorry it's late. I'll write you _____ check right now.[ ]

A. the; the

B. a; a

C. a; the

D. the; a

国内某企业欲在非洲直接投资建厂，生产治疗疟疾特效药，直接供给当地市场。根据国际生产折中理论，该企业至少具备的条件有（）。

A.所有权优势

B.内部化优势

C.区位优势

D.政治优势