Macro doubt!

[SINGHAM]

Which one of the following statements is FALSE?
Interest on pubic debt is not a part of
(A) both personal income and national income;
(B) government consumption expenditure;
(C) national income;
(D) personal income.

Please let me know why isn't pubic debt the part of national income.

[Homer Simpson]

(D) - i suppose interest on public debt don't constitute any new production. its simply the interest payment the public gets for the money it loans to the government so that it can meet its consumption and administrative expenditure. Therefore, it forms the disposable income of the private sector but not the national income.

[SINGHAM]

Thanks.