If New Zealand Exports Wool to China, and Imports Cameras

If New Zealand exports wool to China, and imports cameras from China, then it is likely that:

A) New Zealand has a comparative advantage in producing cameras and China has a comparative advantage in producing wool.
B) New Zealand has a comparative advantage in producing wool and China has a comparative advantage in producing cameras.
C) New Zealand and China would both be better off if they each produced wool and cameras.
D) New Zealand subsidises the production of wool.