Passage Summary: Administrators and teachers think computers will let schools cut staff while expanding classes, but the author argues this is a myth because computers actually increase the workload for teachers.

Conclusion: The belief that computers allow schools to teach more courses with fewer teachers is incorrect.

Reasoning: Computerized instruction actually demands more time from instructors, meaning a reduction in staff would necessitate a reduction in course offerings.

Analysis: In this 'Role in Argument' question, we are looking at the specific function of the first sentence. The author introduces this claim only to immediately knock it down with the word 'But.' Therefore, the statement is a claim that the author's argument is specifically designed to refute. When you see an author attribute a belief to 'administrators' or 'many people' at the start of a stimulus, get ready for them to tell you why those people are wrong.