Iva is a single nonresident alien who has performed services for a U.S. trade or business during the current year. She spent 15 weeks in the U.S. and made $1,000 per week performing these services. She is a resident of a foreign country that has a tax treaty with the U.S. She has additional income of $3,000, not effectively connected with a U.S. trade or business, on which taxes are limited by the treaty. Which of the following statements is correct? Question 57Select one: a. Her tax on nontreaty income will be figured at a flat 30% rate. b. Her total tax liability after claiming treaty benefits cannot be more than the tax liability figured as if the tax treaty had not come into effect. c. Her treaty income will be taxed at a flat rate of 30%. d. She must file Form 8833 in order to claim treaty benefits