Which rocks will likely weather the least? rocks that are soft rocks with a porous surface rocks that are in a dry climate rocks with minerals that dissolve easily

The rocks are in dry climate.

The relative permanence or "toughness" of the rock prone to weathering absolutely depends partially on sort of rock it is. This is because rock type is defined by the structure and relationship of the constituent metals, and complex metals vary in how they endure up to weathering.

Several types of rock, like granite, are very repellent to weathering. Moreover, Igneous rocks serve to heat slowly because it is difficult for water to penetrate into them.