Which method generates an SSB signal using digital signal processing?

Generating an SSB signal in DSP fundamentally relies on the "phasing method," implemented digitally. This involves creating two versions of the audio and carrier signals that are 90 degrees out of phase with each other, known as a quadrature phase relationship. When these quadrature audio and carrier signals are mathematically multiplied (mixed) and then added or subtracted, one sideband constructively interferes (doubles in amplitude) while the other destructively interferes (cancels out entirely). Other options describe unrelated or nonsensical processes. Frequency synthesizers generate stable frequencies but do not inherently remove sidebands, and emulating crystal characteristics is not the mechanism behind DSP sideband generation.