Tionna's car expenses include car insurance and fuel. Tionna's parents agree to pay a certain percent of her car expenses. The cost of car insurance is the same every month, but the cost of fuel depends on the d, number of miles she drives. The expression (0.10d+60)(1−a) represents how much Tionna must pay toward her monthly car expenses. Which statement is correct?

The expression 1−a represents the percent of car expenses Tionna's parents pay each month, and 60 represents the cost of fuel.

The expression 1−a represents the percent of car expenses Tionna must pay each month, and 60 represents the cost of fuel.

The expression 1−a represents the percent of car expenses Tionna's parents pay each month, and 60 represents the cost of car insurance.

The expression 1−a represents the percent of car expenses Tionna must pay each month, and 60 represents the cost of car insurance.