Final answer:
Option (1), The authors' purpose is likely to underscore the importance of vitamin C in historical advancements in nutritional science and to engage students in the subject matter with varied perspectives.
Step-by-step explanation:
The authors' purpose in including the text 'Making History with Vitamin C' is most likely to highlight the achievements made possible by vitamin C. This can be inferred from the provided information that discusses the significant contributions of vitamins, such as vitamin C, to human health and well-being. The text also implies a goal of providing context and engaging students by exploring various perspectives on the importance of vitamins in the human diet, rather than focusing solely on the chemical structure or encouraging daily use of vitamin C.