Triple

Target class: submerged feature
Context triple: [Zhongsha Qundao, instanceOf, submerged feature]

• A. submarine geological feature
  A submarine geological feature is a naturally occurring structure or landform on the ocean floor, such as seamounts, trenches, ridges, or hydrothermal vents, formed by geological processes beneath the sea.
• B. submarine basin
  A submarine basin is a large, low-lying depression on the ocean floor that collects sediments and is often bounded by higher seafloor features such as ridges or continental margins.
• C. submarine bank chosen
  A submarine bank is an underwater elevation or shoal on the seafloor, typically shallower than the surrounding area but still submerged below the ocean surface.
• D. submarine channel
  A submarine channel is an underwater valley-like feature on the seafloor formed by sediment-laden currents that transport and deposit sediments across continental margins and deep ocean basins.
• E. submarine canyon
  A submarine canyon is a steep-sided underwater valley incised into the continental shelf and slope, often extending from the mouth of a river and serving as a major pathway for transporting sediments from shallow to deep ocean basins.
• F. None of above.