Use the information below to answer the following question$($s$)$

Brian O'Neil intends to sell his customers a special round $-$ trip airline ticket package. He is able to purchase the package from the airline carrier for $$400$ each. The airline intends to reimburse Brian for any unsold ticket packages. The round $-$ trip tickets will be sold for $$500$ each. Brian has a tax rate of $30\%$ on his business income.

How many units will he need to sell in order to break $-$ even assuming Brian incurred $$10,000$ in expenses to advertise the sale, and there are no other expenses?

A$.25$ packages

B$.100$ packages

C$.20$ packages

D$.75$ packages

E$.125$ packages