What Is the Key Advantage of the Sole Proprietorship,beyond the Simplicity

What is the key advantage of the Sole Proprietorship,beyond the simplicity of the commencement of the operation?

A) the sole proprietor is 100% personally exposed to the liabilities incurred by the business
B) the sole proprietor has 100% control of the business
C) the skill set of the business is limited to the skills possessed by the sole proprietor
D) no real creation of a separate legal business entity
E) limited to their personal capacity to invest and/or borrow money