Which of the following statements is true of single sideband (SSB)?

Traditional Amplitude Modulation (AM) consists of a carrier wave and two identical sidebands (upper and lower), both containing the exact same audio information. Single sideband (SSB) is a refined form of AM where the carrier wave and one of those duplicate sidebands are suppressed before transmission. By suppressing the carrier and the redundant sideband, all the transmitter's RF energy is packed into just one sideband. This makes the signal highly efficient and halves the required bandwidth. The receiving station's radio will reinsert a localized carrier internally to recover the audio. It is incorrect to say the carrier is still transmitted. Furthermore, while SSB is highly popular, it is not the only voice mode authorized on any of the HF bands, making the regulatory distractors false.