Final answer:
The first franchised unit was opened by Ray Kroc in 1955 in San Antonio, Texas, marking a significant event in the history of the franchise business model.
Step-by-step explanation:
The subject of the question pertains to the historical development of the franchise business model, specifically in the fast food industry. The answer options refer to different individuals who are well-known for their contribution to the expansion of various food franchises. Franchising became a significant business strategy during the 20th century, with companies like McDonald's at the forefront of this movement.
The correct answer to the question 'The first franchised unit was opened by what man in what year in what Texas town?' is A) Ray Kroc in 1955 in San Antonio. Ray Kroc opened the first McDonald's franchise in San Antonio, Texas, in 1955, which marked the beginning of one of the world's most famous and widespread franchises.