Final answer:
Without context, it is not possible to determine what Marc called the summary sheet shown on the screen. The provided options alone are not enough to ascertain the correct answer.
Step-by-step explanation:
The summary sheet shown on the screen by Marc is not described within the context provided, making it impossible to accurately determine what Marc called it. The options given are 'Top sheet', 'Bottom sheet', 'Middle sheet', and 'None of the above'. Without additional context or information about what was displayed on the screen or discussed by Marc, it is not possible to give a definitive answer to this question. It is essential in such cases to have either the corresponding part of the lesson or additional details that can give clues to the correct answer.