Investment income payments made to foreigners这个属于经常性账户？

老师，这个是2021年的mock上午卷第61题。

A country’s international transactions accounts data for last year are presented in its domestic currency:

TransactionAmoun

tExports of goods and services10,000

Import of goods and services14,216

Investment income payments made to foreigners2,519

Investment income received from foreigners3,409

Net change in assets owned abroad1,548

Net change in foreign-owned assets domestically

4,989Unilateral current transfers received346

Unilateral current transfers paid1,107

Statistical discrepancy646

The current account balance is closest to:

1. –4,087.
2. –4,216.
3. –4,345.

答案里面是把investment income payment made to foreigners还有investment income received都算在经常性账户里了，这些不属于资本账户吗？投资耶？

还有单边转移也是算的对吧？统计误差不用算。是这样吧？