Due to a Pre-Existing Contract,Recycle America Inc

Due to a pre-existing contract,Recycle America Inc.has the opportunity to acquire 10,000 pounds of scrap aluminum and 2500 pounds of scrap lead for $10,750.If the current market price for scrap aluminum is $0.83 per pound and the current market price for lead is $1.06 per pound,then the added benefit (cost) to you if you acquire this metal is:

A) ($200) .
B) $200.
C) ($1925) .
D) $1925.