Priscilla Sells 10 Bottles of Olive Oil Per Week at $5

Priscilla sells 10 bottles of olive oil per week at $5 per bottle. She can sell 11 bottles per week if she lowers the price to $4.50 per bottle. The price effect would be a decrease of _____.

A) $4.50
B) $5.00
C) $45.00
D) $50.00