Concept:Profit = increase in net assets + drawings − capital introduced.Explanation:Annual drawings = 330×12=N3,960.Opening net assets = (21,000+9,800+6,800+7,000)−4,900=N39,700.Closing net assets = (28,000+13,200+5,200+4,600)−(5,100+1,200)=N44,700.Increase in net assets = 44,700−39,700=N5,000.Profit = 5,000+3,960=N8,960.Answer:D. N8,960