"which of the following are part of country a’s positive (i. e. recorded with a + sign) current account entries?

1. donation by country a’s residents to a country a’s charity organization
2. payment of interest on country a’s government bonds owned by country a’s residents
3. country a workers’ wages paid by a domestic firm on country a’s soil
4. country a workers’ wages paid by a foreign firm abroad
5. country a’s central bank purchase of stocks from the country
a 6. country a’s sale of government bonds to country a’s residents
7. country a’s sale of government bonds to foreigners
8. country a’s imports of cars to country b
9. payment of interest on country a’s government bonds owned by foreigners
10. donation by country c’s residents to a country a’s charity organization
11. country a’s exports of cars to country b
12. donation by country a’s residents to a foreign charity organization"

a. 4, 10, 11
b. 2, 4, 9, 10, 11
c. 2, 10, 11
d. 4, 9, 10, 11