The Hermanski Company Held a Christmas Party One Hundred People Attended the Party

The Hermanski Company held a Christmas party.The company expected attendance of 100 people and prepared the following budget:
$\begin{array}{ll}\text { Hotel room rental } & \$ 600 \\\text { Food } & 500 \\\text { Entertainment } & 800 \\\text { Decorations } & 300\\\text { Total Costs }&\$2,200\end{array}$
One hundred people attended the party.The costs incurred were:
$\begin{array}{ll}\text { Hotel room rental } & \$ 575 \\\text { Food } & 640 \\\text { Entertainment } & 750 \\\text { Decorations } & 350\\\text { Total Costs }&\$2,315\end{array}$
What is the primary reason for the variance in total costs?

A) Hotel room rent cost more than expected.
B) Food cost more than expected.
C) Entertainment cost more than expected.
D) Decorations cost less than expected.