Amateur radio operation must not cause interference to other radio services operating in which of the following bands?

In the Canadian frequency allocations, amateur radio operators are granted secondary status in certain frequency bands. When operating as a secondary service, amateurs must not cause harmful interference to primary services sharing the same band. The 430.0 MHz to 450.0 MHz band (the 70-centimeter band) is one such shared band. Amateurs share this space with primary users such as radiolocation (radar) and Earth exploration-satellite services, and must strictly yield to them. The other options listed (144-148 MHz, 14-14.2 MHz, and 7-7.1 MHz) are exclusive amateur bands. In these segments, amateurs have primary status and do not have to worry about causing interference to other authorized non-amateur services, because none are permitted to operate there.