For each Class X Manager's examination, a total of _____________ questions shall be drawn from the reservoir.

The correct response indicates that a total of 100 questions shall be drawn from the reservoir for each Class X Manager's examination. This number is significant as it aligns with the standards established for ensuring comprehensiveness in assessing the knowledge necessary for effective management in propane operations. A larger question pool indicates a robust evaluation process, allowing for a thorough assessment of a candidate's understanding of regulations, safety protocols, and best practices within the propane industry.

Having 100 questions helps to minimize the likelihood of duplication in questions across various tests, thereby providing a diverse set that adequately covers all relevant areas. This ensures that candidates are well-tested on various topics pertinent to their roles. The other choices, which suggest lower question counts, do not provide the same level of depth and breadth needed for such a critical certification. This comprehensive approach is essential in maintaining the high standards required for managing propane operations safely and effectively.