Final answer:
Without additional context or data, it is not possible to determine the correct relationship between the number of students majoring in engineering and those majoring in physics from the given options.
Step-by-step explanation:
The question provided is asking to determine the expression that represents the number of students majoring in physics given the number of students majoring in engineering, represented as y. Without additional contextual information, like if the physics majors are less or more than engineering majors by a certain number, or a direct relationship, it is not possible to select the correct option from A) y - 9,600 students, B) 9,600 - y students, C) y + 9,600 students, D) 9,600 + y students. Further clarification or data is required to make a meaningful answer.