What should you note about electric bicycles (e-bikes) participating in road traffic?

Your answer is correct. Electric bicycles (e-bikes) can be deceptively fast because they have a motor that assists pedaling, allowing riders to reach higher speeds than on a conventional bicycle without much extra effort. At the same time, they often look very similar to regular bicycles, making it harder for other road users to immediately recognize them as motor-assisted vehicles. This is why you should be particularly attentive when sharing the road with e-bikes.

The third option, about being easily recognized by engine noise, is incorrect because most e-bikes operate very quietly, so you cannot rely on sound to notice them. Understanding these facts helps you to be safer and more aware of the presence and behavior of e-bikes in traffic.