Silk from China found its way to India, the Middle East and Rome, _______ spices and glass, which was not known to China. 

Silk from China found its way to India, the Middle East and Rome, _______ spices and glass, which was not known to China.

1. A.
   in exchange for
2. B.
   in return
3. C.
   in change for
4. D.
   in need of

Silk from China found its way to India, the Middle East and Rome, _______ spices and glass, which was not known to China. 

A. in exchange for   B. in return          C. in change for    D. in need of

Silk from China found its way to India, the Middle East and Rome, ________ spices and glass, which was not known to China.

A. in charge of                 B. in exchange for        C. in terms of               D. in addition to

Silk from China found its way to India, the Middle East and Rome, _______ spices and glass, which was not known to China.