While most developed countries tend to experience ________ swings in their terms of trade, some developing countries tend to experience ________ swings in their terms of trade due to the fact that ________.

A.

mild; large; their major exports concentrated in manufactured sectors.

B.

mild; large; their major exports concentrated in mineral and agricultural sectors.

C.

large; mild; their major exports concentrated in manufactured sectors.

D.

large; mild; their major exports concentrated in mineral and agricultural sectors.