• A 2-stroke engine creates more torque at a higher rpm, while a 4-stroke engine creates a higher torque at a lower rpm. 
• 2-stroke engines are more powerful than 4-stroke engines. 
• Two-stroke engines are a much simple in design, making them easier to fix.
• They do not have valves, but rather ports. So two stroke engines are used more frequently in two wheelers due to higher power to weight ratio.

Hence, the correct option is (C).