Which of the following is NOT a "requirement" for the formation of a hurricane？

problems. _________ obtaining water is not the least.

A) for which B) to which

C) of which D) in which

A.who

B.that

C.in which

D.of which

A.where

B.that

C.it which

D.which

A.Why

B.What

C.Which

A.What

B.Why

C.Where

D.Which

A.when

B.which

C.in which

D.where

A.on which

B.in which

C.when

D.that

A.into

B.dutyfree

C.throughout

D.nationalization

A.that

B.which

C.what

A.which

B.that

C.what