What is the normalized relationship between Φf and Φc for the FROMM scheme?

• A. \(\tilde{\phi_f}=\tilde{\phi_c}+\frac{1}{4}\)
• B. \(\tilde{\phi_f}=\tilde{\phi_c}-\frac{1}{4}\)
• C. \(\tilde{\phi_f}=\frac{1}{4}-\tilde{\phi_c}\)
• D. \(\tilde{\phi_f}=\frac{1}{4} \tilde{\phi_c}\)