Final answer:
Business brokering does not require licensing, while sales of time-shares, campground memberships, and real estate auctioneering generally do.
Step-by-step explanation:
In the field of real estate, licensing is required for certain activities, but not for others. Among the options provided, business brokering does not require licensing when performed for compensation. Business brokering involves facilitating the sale or purchase of businesses, which is distinct from real estate transactions.
On the other hand, licenses are typically required for the sales of time-shares, campground memberships, and real estate auctioneering. These activities directly involve real estate properties and often require knowledge of real estate laws and regulations.