Explanation: When viewing an incoming Digital Selective Calling (DSC) Distress alert, extreme caution is necessary to avoid accidentally activating an acknowledgement or relay. DSC acknowledgements send a signal indicating that your station has received and is acting upon the distress alert, potentially leading other stations or rescue authorities to believe the situation is handled, causing confusion or delaying appropriate response. Only designated rescue authorities or stations specifically instructed to do so should transmit a DSC acknowledgement. Option B is incorrect because making a DSC call to all ships for clarification would add unnecessary traffic and could interfere with actual distress communications on the voice channel. The proper procedure is to monitor the indicated voice channel. Option C is incorrect because DSC units do not auto-acknowledge distress alerts. Manual acknowledgement is a deliberate action, crucial for preventing false indications of assistance. Option D is incorrect as it assumes auto-acknowledgement, which is false, and misstates the watch officer's role regarding DSC acknowledgements.