An ELT on an aircraft must transmit simultaneously on which frequencies?

1. 1121.5 MHz and 243.0 MHz
2. 2406 MHz and 243.0 MHz
3. 3406 MHz and 121.5 MHz
4. 4118.0 MHz and 121.5 MHz

Source: Canadian Aviation Regulations (SOR/96-433), CAR 605.38(1) ELT