Ingrid is a graduate student at a large university in the U.S. She is a citizen of Denmark and is working on a Doctor of Philosophy degree on full scholarship. In addition to tuition and required course-related expenses (fees, books, and supplies required for her courses), the scholarship includes $5,000 for room and board and $4,000 that Ingrid will receive to do research. She will receive another $4,000 to act as a graduate teaching assistant. Which items, if any, are subject to U.S. taxes? Question 50Select one: a. Only the $4,000 income from her part-time job, the $5,000 cost of room and board, and the $4,000 received for performing research because these are not qualified education expenses b. Only the $4,000 income from her part-time job and the $5,000 cost of room and board because everything else is a qualified expense c. Only the $4,000 income from her part-time job as a graduate teaching assistant because everything else is an educational expense covered by the scholarship d. The entire scholarship is subject to U.S. taxes