The landform as shown in the above image formed by Earth's forces is a form of syncline. Hence, option A holds true.
What is a syncline?
A syncline can be defined as a form of land, which is formed due to geological forces that create a downward facing folds on the steep or hilly surfaces of the earth.
The slopes in synclines are formed due to collisions that occur in the tectonic plates of the Earth's surface, causing huge amount of vibrations. These collisions are caused by the differences in the pressure of the Earth's crust.
Hence, option A holds true and states regarding a syncline. An image of syncline formation is also added for better reference of the students.
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