Select the correct option to test your answer: A $$\frac{{{\text{Total}}\,{\text{bases}}}}{{{\text{CEC}}}} \times 100$$ B $$\frac{{{\text{Exchangeable bases}}}}{{{\text{CEC}}}} \times 100$$ C $$\frac{{{\text{CEC}}}}{{{\text{Total}}\,{\text{bases}}}} \times 100$$ D $$\frac{{{\text{CEC}}}}{{{\text{Exchangeable bases}}}} \times 100$$ Correct Answer: Option A ($$\frac{{{\text{Total}}\,{\text{bases}}}}{{{\text{CEC}}}} \times 100$$) Verified correct option for Agriculture (Soil Science).