Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

RIT stands for Receiver Incremental Tuning, also commonly referred to as a Clarifier. When operating on Single Sideband (SSB), if a replying station is slightly off your frequency, their voice will sound unnatural in pitch (too high or too low, often described as a 'Donald Duck' voice). Adjusting the RIT changes only your receive frequency by a small amount so their voice sounds normal, without altering your transmit frequency. This ensures you and the other station don't end up chasing each other up and down the band. The distractors are incorrect because AGC (Automatic Gain Control) manages volume levels, bandwidth selection manages the width of the received signal to reduce noise, and tone squelch is used in FM, not SSB.