Why Is Cation-Exchange Capacity (CEC) an Important Soil Characteristic

Multiple Choice

Why is cation-exchange capacity (CEC) an important soil characteristic?

A) CEC is an indication of the soil permeability; the lower the CEC the higher the permeability.
B) CEC is a measure of soil fertility; the higher the CEC the higher the soil fertility.
C) CEC is an indirect way to measure soil pH; it indicates whether the soil is neutral, alkaline, or acidic.
D) CEC is used to infer soil texture without having to use a soil texture triangle.