Transactions between Japan and the rest of the world are shown below. 

American companies are buying Japanese-made computer parts worth 100 million yen.

Japanese citizens spend 20 million yen on education at Canadian universities.

Japan sent 5 million yen aid to Africa.

Japanese citizens buy shares worth 12 million yen in American companies.

Japanese bankers receive 3 million yen in interest payments from foreign investors.

The Japanese government purchased 66 million yen worth of U.S. government debt obligations.

Find Japan's trade balance (in millions of yen).

• 75
• 78
• 80
• 73

Find Japan's official reserve account balance (in millions of yen)

• -45
• -71
• -66
• 0