Which of the following statements is CORRECT? a. One advantage of forming a corporation is that equity investors are usually exposed to less liability than they would be in a partnership. b. Corporations face fewer regulations than proprietorships. c. One disadvantage of operating a business as a proprietor is that the firm is subject to double taxation, because taxes are levied at both the firm level and the owner level d. It is generally less expensive to form a corporation than a proprietorship because, with a proprietorship, extensive legal documents are required