题目内容：
【单选题】The Alpha Beta Gamma Fraternity held a Christmasparty. The fraternity expectedattendance of 200 persons and prepared the following budget:
Hotelroom rental $600
Food 500
Entertainment 800
Decorations 300
Totals $2,200
Afterall bills for the party were paid, the total came to $2,315. Details are: $575 for hotel room rental; $640for food; $750 for entertainment; and $350 for decorations. Two hundred persons attended the party.
Whatis the variance in hotel room rental?
A、$70 unfavorable is the hotel room rental variance.
B、$70 favorable is the hotel room rental variance.
C、$25 favorable is the hotel room rental variance.
D、$140 unfavorable is the hotel room rental variance.
参考答案：