— How do you find ____ dress in the shop window? 　 

— Oh, it's beautiful. She will be pleased if she can have it as ____ birthday present. [ ]

A. a; a 　　　　

B. a; the 　　　

C. the; a 　　　

D. the; the

我用商业贷款买了预售房即期房，两年之后交房。买了期房之后我又全款买了一套房。两年之后我打算将期房转为商转公积金贷款，这种情况请问商转公时算二套房吗？公积金贷款比例是多少？