Misty wants to earn extra money and decides to open a cleaning service for dormitory rooms at her college campus. She posts fliers on the bulletin boards in each dormitory and buys some cleaning supplies. She plans to operate this business alone and keep all of the profits. Based on thisinformation, it would appear that Misty's business is a_______.
A. sole proprietorship
B. closely held corporation
C. master limited partnership
D. general partnership
E. franchise