If GNP Is $500 Billion, Receipts of Factor Income from the Rest

Multiple Choice

If GNP is $500 billion, receipts of factor income from the rest of the world are $15 billion, and payments of factor income to the rest of the world are $5 billion, then GDP is

A) $480 billion.
B) $490 billion.
C) $510 billion.
D) $520 billion.