Option 1 -> Includes Continental slope which is a major relief feature, not minor.
Option 2 -> Guyots, Submarine Canyons, and Seamounts are all minor relief features of the ocean floor.
Option 3 -> Includes Continental slope which is a major relief feature, not minor.
Option 4 -> Includes Continental slope which is a major relief feature, not minor.
Hence, Option 2: (A), (B) and (C) only -> Continental slope is a major relief feature representing the steep transition zone between the continental shelf and deep ocean floor, while Guyots (flat-topped seamounts), Submarine Canyons (deep valleys), and Seamounts (underwater mountains) are classified as minor relief features of the ocean floor -> correct