The year-end balance sheet of Carnival Inc. shows total assets of $6,617 million, operating assets of $5,253 million, operating liabilities of $2,822 million, and shareholders equity of $2,950 million.

The company's year-end net operating assets are:

a) $9,39 million

b) $5,253 million

c) $2,431 million

d) $8,075 million

d) none of these are correct