In the current year, Murray earned $10,000 teaching college accounting classes while working on his doctoral degree. Also in the current year, he received a fellowship grant of $2,500. Murray incurred the following expenses during the current year: Room and board $1,500 Tuition and required fees 1,750 Books 250 What income must Murray report on his current-year income tax return? A.$10,000 B.$10,500 C.$12,500 D.$11,500