A 72-year-old man on aspirin for ischemic heart disease presents with sudden painless large-volume hematochezia and mild hypotension (BP 92/56). After resuscitation with crystalloid and 2 units of packed cells, urgent colonoscopy within 24 hours reveals a single bleeding diverticulum in the descending colon with a visible vessel and adherent clot. The structure marked **A** in the diagram represents the recommended initial management approach for this patient. Which of the following best describes the endoscopic hemostasis technique most appropriate for this diverticular bleed?
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