Which of the following is NOT true about the US federal debt?

Question $13$Select one:

a$.$

Interest payments must be made on debt held by foreigners.

b$.$

The debt creates an obligation on future taxpayers.

c$.$

Someday, the debt will have to all be paid off.

d$.$

The US makes payment on its debt using its own currency.

e$.$

Interest payments on government borrowing tend to go to the wealthy.