Which of the following is true about combination franchising?

Question $17$ options:

It is based on the idea that turning a franchise into a product and service franchise will increase the survival of the franchise.

It is based on the idea that you get both a product$/$trademark franchise and business format franchise for one fee.

It is based on the idea that if you buy one franchise, you get another one at a discount.

It is based on the idea that different franchises can share a location and be better than they would be alone due to their complementary products$/$services$.$