Final answer:
The G1 license is not acceptable for U-Haul rentals because it is a beginner's license that does not permit unsupervised driving. Renters must have a full license, which the G2, F, M, and LM are likely to represent, subject to U-Haul's specific rental policies.
Step-by-step explanation:
Canadian Driver's License Types
The question pertains to the types of Canadian driver's licenses that are not acceptable for U-Haul rentals. Among the options provided, the G1 license is a beginner's license and does not allow unsupervised driving. Therefore, it would not be acceptable for U-Haul rentals, as renters must be fully licensed to operate the rental vehicles without supervision. The other licenses, such as G2, F, M, and LM, typically indicate a level of full licensure or a specific class (like motorcycle for M), and they may be acceptable depending on U-Haul's policies and the specific responsibilities associated with the class. However, it is important to always confirm with U-Haul or check their official policies, as requirements may vary and are subject to change.