It still remains a mystery why some people are _______ certain flower fragrance while others are not.   [ ]

A. allergic to        

B. accustomed to    

C. addicted to        

D. appealing to

The recent conference on the effective use of the seas and oceans was another attempt resolving major differences among countries with conflicting interests.()

A. resolve

B. resolves

C. to resolve

D. being resolved