The correct answer is: C. Dry hill soil
Dry hill soil is the most suitable soil for the growth of dry fruits like almond, walnut, raisins in Himachal Pradesh. This is because dry hill soil is well-drained and has a high pH level. It is also rich in nutrients, which are essential for the growth of dry fruits.
High hill soil is not suitable for the growth of dry fruits because it is too cold and wet. Mountainous soil is also not suitable for the growth of dry fruits because it is too rocky and has a low pH level. Low hill soil is not suitable for the growth of dry fruits because it is too humid and has a low pH level.
Dry hill soil is the most suitable soil for the growth of dry fruits because it has the right combination of nutrients, drainage, and pH level.