Final answer:
The question deals with Canadian Aviation Regulations regarding aircraft speed limits near controlled airports, but the correct answer cannot be given without the exact regulatory reference.
Step-by-step explanation:
The question pertains to the operation of aircraft in Canada and their speed restrictions when they are within a certain range of a controlled airport. The correct answer to the speed limit within 10 nautical miles of a controlled airport and below 3000 feet above ground level (AGL) for aircraft is specified in the Canadian Aviation Regulations. Without the exact reference from the regulations, it's difficult to provide the precise answer. In absence of the regulatory context provided in your materials, I cannot provide a definitive answer. However, typically aviation regulatory bodies impose speed restrictions to ensure safety and efficient traffic management around airports.