Large scale earth movements which results in the formation of Fold Mountains are due to stress set u...........

Explanation:

All of the above

Flow movements in the mantle can contribute to large-scale earth movements, leading to the formation of Fold Mountains.

Increased load of overlying rocks, such as the deposition of sediments, can create stress in the Earth's crust and contribute to the formation of Fold Mountains.

Expansion and contraction of some parts of the Earth's crust, often associated with tectonic activity, can also lead to the development of Fold Mountains.

Magnetic intrusions into the crust, while not as direct a cause of fold mountain formation, can be associated with tectonic processes and contribute to the overall stress and deformation in the Earth's crust.

Therefore, the correct answer is "All of the above."