What is the formula for the mean pitch factor?

• A. mean pitch factor = pitch factor of each coil per pole group + turns in the coil / total number of turns
• B. mean pitch factor = pitch factor of each coil per pole group / turns in the coil * total number of turns
• C. mean pitch factor = pitch factor of each coil per pole group * turns in the coil * total number of turns
• D. mean pitch factor = pitch factor of each coil per pole group * turns in the coil / total number of turns