The submersible Titan, operated by OceanGate Expeditions, went missing in the North Atlantic Ocean while exploring the Titanic shipwreck site.
Step 1: Location of incident
The Titanic wreck lies deep in the North Atlantic Ocean near Newfoundland, Canada.
Step 2: Significance of the expedition
OceanGate’s missions aim to explore deep-sea wrecks, but the loss of Titan in the North Atlantic brought global attention to deep-sea exploration risks.
Therefore, option (C) is correct.