Answer:
OPTION A; A COVENANT NOT TO COMPETE.
Explanation:
A covenant not to compete (can also be referred to as a non-compete clause), in the sale of business, is an agreement where the buyer will have the seller sign an agreement that states that the seller will not open a business within a regional area, within a specific duration of time.
Since the sales agreement of Carl who is the seller and Jerry who is the buyer contains a clause which states that Carl is not allowed to open another restaurant in the area for a duration of five years, then THE CLAUSE IS A COVENANT NOT TO COMPETE.