The correct answer is: B. Current account can have a positive or negative balance.
A fixed capital account is a type of account that records the value of fixed assets, such as land, buildings, and equipment. These assets are typically not sold or disposed of on a regular basis, so the balance of the fixed capital account is usually stable.
A current account is a type of account that records the value of goods and services that are bought and sold between countries. The balance of the current account can be positive or negative, depending on whether a country imports more goods and services than it exports, or vice versa.
A fluctuating capital account is a type of account that records the value of capital that flows into and out of a country. This capital can include investments, loans, and remittances. The balance of the fluctuating capital account can also be positive or negative.
In conclusion, the only statement that is always true is that the current account can have a positive or negative balance. The other two statements are not always true.