Answer:
B) 30 BILLION Canadian dollars.
Step-by-step explanation:
The balance of payments (BOP) formula is:
BOP = current account + financial account + capital account + balancing item
BOP always = 0
so if Canada's financial account is -$40 billion, its capital account is $10 billion, and there is no balancing item, then:
0 = current account - $40 billion + $10 billion
current account = $40 billion - $10 billion = $30 billion