Answer:
D. He will be completely certain about the success of his franchise business
Step-by-step explanation:
Franchise is a contract between or joint agreement between two parties where an already running business sells the right to use and sell its name and products. Since it is an already running the business, the business model is verified and proven for benefits.
Hence John is completely certain about the success of his franchise business. Since he is buying the name and product, there is an investment and no changes in the business management techniques can be made.