What Is the Distinguishing Feature of a Limited Partnership

What is the distinguishing feature of a limited partnership?

A) Some partners are involved as investors while other partners manage everyday operations.
B) The partners have liabilities limited to their personal assets only.
C) The partners can elect the board of directors that selects the managers to run the business in the interest of the partners.
D) The partners run the business together and share all profits and losses according to the partnership agreement.
E) The partners have their investments protected from the creditors; however, they are liable for up to the amount of their assets.