Select the correct option to test your answer: A $$\frac{{{{\text{T}}_f}}}{{\text{W}}} = \left( {\frac{{1.21}}{{{{\text{C}}_{\text{n}}}}}} \right) + 0.04$$ B $${{\text{T}}_f} = \left( {\frac{{1.21}}{{{{\text{C}}_{\text{n}}}}}} \right) + 0.04$$ C $${{\text{T}}_f} = \left( {\frac{{1.21}}{{{{\text{C}}_{\text{n}}}}}} \right) + 0.046$$ D $${{\text{T}}_f} = 1.24{\text{W}} + {\text{0}}{\text{.046}}$$ Correct Answer: Option A ($$\frac{{{{\text{T}}_f}}}{{\text{W}}} = \left( {\frac{{1.21}}{{{{\text{C}}_{\text{n}}}}}} \right) + 0.04$$) Verified correct option for Agriculture (Agricultural Engineering).