whats the right answer

Question

How are businesses taxed with the corporate income tax?(1 point)
Responses

All businesses pay the same amount of tax each year.
All businesses pay the same amount of tax each year.

Businesses pay a progressive tax based on their total expenses.
Businesses pay a progressive tax based on their total expenses.

Businesses pay a proportional tax based on their total receipts.
Businesses pay a proportional tax based on their total receipts.

Businesses pay a proportional or progressive tax based on their profits.