What is double taxation?

-The employees of a corporation are subject to double taxation--first when they get their paychecks and then when they pay state and federal income tax.

-The owners of a corporation are subject to double taxation--first at the corporate level and then again at a personal level when they are given dividends.

-The suppliers of a corporation are subject to double-taxation-first when the corporation pays their invoices and then again when they have to pay federal taxes.

-None of the above