An outdoor spa (hot tub) draws 1478 watts to keep the water warm. If the utility company charges $0.08 per kilowatt-hour, how much does it cost to operate the spa for four months during the winter (24 hours per day)? Assume each month has 30 days.
a. $85.50
b. $120.64
c. $181.28
d. $241.92
