A store is going to make a trail mixture of peanuts and chocolate candies. They want the mixture to sell for $3.20 per pound. Peanuts sell for $4.50 per pound and they are going to use 20 pounds of peanuts. If chocolate candies sell for $2.25 a pound how much of the chocolate candies should they use (round to the nearest pound)?
A) 25 pounds
B) 27 pounds
C) 28 pounds
D) 30 pounds