Like all companies, McDonald's needs to continue identifying, developing, and introducing new products. One recent concept McDonald's identified is a vegan burger. After assessing the concept, McDonald's research and development kitchen developed a vegan burger that they felt would be appealing to the 13% of Americans that are vegetarian or vegan. Before rolling the vegan burger out, McDonald's wanted to examine the viability in the real world, but on a limited basis. McDonald's next step should be to the vegan burger. a. test market
b. concept test
c. field exam
d. commercialize