The correct answer is option 2 - Mariana Trench. The Mariana Trench is considered the deepest point of the oceans. This trench is located in the western Pacific Ocean, near the Mariana Islands. It is known to be the deepest part of the Earth`s crust, reaching a depth of approximately 36,070 feet (10,994 meters). The Mariana Trench is formed as a result of the collision between the Pacific and Philippine Sea plates. This collision created a subduction zone, which is a region where one tectonic plate is forced beneath another. As a result, the floor of the trench has a steep and curved shape, making it the deepest part of the world`s oceans.

Option 1 - Tonga Trench is incorrect. Although the Tonga Trench is also a deep trench located in the Pacific Ocean, it is not considered the deepest point of the oceans.

Option 3 - Philippine Trench is incorrect. The Philippine Trench is another trench located in the Pacific Ocean, but it is also not considered the deepest point of the oceans.

Option 4 - Kermadec Trench is incorrect. The Kermadec Trench is yet another trench in the Pacific Ocean, but it is not the deepest point of