The choices can be found elsewhere and as follows:
a. Increased temperature and pressure b. Melting and crystallization <span>c. Exposure and weathering </span> <span>d. All of the above </span> I believe the correct answer is option C. It would be Exposure and weathering that would cause an igneous rock to become soil. <span>Weathering breaks rock down into small particles which are carried away by erosion and deposited somewhere, sometimes creating very verdant soils. </span>
