A country's balance of payments records __.

A、the prices that a country pays for its imports and the prices that
the country receives for its imports.
B、the flows of value between that country's residents and residents of
the rest of the world during a period of time.
C、capital gains and losses on a country's international assets.
D、the value of a country's holdings of foreign assets, minus the value
of foreign holdings of the country's assets.