Identify Which of the Following Goods Are Part of the Current

Identify which of the following goods are part of the current year's U.S. GDP and which are considered current year's U.S. GNP; explain. (Note: Ford is a company owned by U.S. citizens and Toyota is a company owned by Japanese citizens.)
(a) a Ford produced in Mexico
(b) a Toyota produced in California
(c) a meal you make for a dinner party
(d) an American-made vintage T-shirt from Led Zeppelin's 1971 North American tour you bought online last week