Hi Tom Gill, I want to help you with this question.
To verify your question, you want to know, if there is a specific quota or limit for the multible choice action in MS forms, right?
In Microsoft Forms, you can create up to 200 questions per form or quiz. However, the number of multiple-choice questions you can add is not explicitly limited. You can include as many multiple-choice questions as needed within the overall limit of 200 questions.
Unfortunately, there is no built-in feature to restrict the number of times a specific option within a multiple-choice question can be selected. https://support.microsoft.com/en-us/office/form-question-response-and-character-limits-in-microsoft-forms-ec15323d-92a4-4c33-bf88-3fdb9e5b5fea
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