Marina has only enough organic matter to add to one section of the farm. Assume the organic matter has a CEC = 200 cmol c/kg, that the initial soil organic matter content is negligible (i. e. , zero), and that the amount added would be equivalent to 5% soil organic matter. Determine how much the CEC would increase due to the addition of organic matter.

A) The CEC would increase by 10 cmol c/kg.

B) The CEC would increase by 100 cmol c/kg.

C) The CEC would increase by 20 cmol c/kg.

D) The CEC would increase by 50 cmol c/kg.