Bertha,
The three criteria you describe are pertinent to a different section of the course and the TWC rules. Specifically, [that] schools in good standing need not submit applications but must keep these on file at the school...). Your answers are correct for situations where the school may be required to submit all instructor applications for TWC CSC approval. The forum question asks for situations in which you would submit a "variance" application for an instructor. In other words, a variance request/application is needed when you have an instructor candidate who does not meet the required instructor qualifications per the rules and the application form. Please review Additional Requirements for Specific Instructors in section 1 of the course immediately preceding the quiz and forum question. This section includes that when submitting a variance, the applicant must write a letter to TWC CSC that [among other things] includes: "The current rule requirements in comparison to the applicant's qualifications."
JP Mehlmann