Your property's break$-$even point is achieved when $2,500$ rooms are sold each month. If the average daily rate is $$85$ and variable costs are $$35$ per room, how many rooms above the break$-$even point must be sold in order for your property to net $$25,000?($ignore income taxes$)$

A$.450$

B$.500$

C$.700$

D$.1000$