What is the minimum age to obtain a C or F license to drive a bus in Ontario?

Answer: B — 18

To obtain a C or F license to drive a bus in Ontario, the minimum age requirement is 18 years old. Option A is incorrect because it is the minimum age to obtain a G1 license, which allows individuals to drive with a licensed driver in the passenger seat. Option C is too high of an age requirement and is not applicable for these types of licenses. Option D is the minimum age requirement for a commercial driver's license, which is not necessary for driving a bus in Ontario. Therefore, the correct answer is B as it is the minimum age requirement for obtaining a C or F license to drive a bus in Ontario.