The Average Monthly Balance in Yolanda's Bank Account Is $1,800

The average monthly balance in Yolanda's bank account is $1,800.Yolanda spends the same amount of money each day during a 30-day month,and at the end of the month her account balance is $0.Yolanda spends her money at a constant rate of ________ per day.

A) $60
B) $120
C) $180
D) $360