The Most Significant Limitation on Use of a Sole Proprietorship

The most significant limitation on use of a sole proprietorship is that

A) the sole proprietor alone must do all the work in the sole proprietorship business.
B) it is simple to terminate.
C) the sole proprietor must obtain a business licence.
D) the sole proprietor must register a business name.
E) the sole proprietor has unlimited personal liability for all obligations of the sole proprietorship business.