Which series of emission modes listed below is in order from the narrowest bandwidth to the widest bandwidth?

Different radio emission modes require different amounts of radio frequency spectrum to transmit information effectively. Continuous Wave (CW), which is a simple on/off carrier used for Morse code, requires the narrowest bandwidth of all common modes, typically occupying only 150 to 500 Hz. Single Sideband (SSB) voice transmits only a single sideband of a voice signal and suppresses the carrier completely, making it highly efficient; it requires about 2.5 to 3 kHz of bandwidth. Frequency Modulation (FM) voice transmits a shifting carrier and multiple sidebands, making it the widest of the three, typically requiring 10 to 15 kHz of bandwidth for standard amateur communications.