Quality factor is defined as ________

• A. \(2π×\frac{energy \,radiated\, per\, cycle}{Total\, energy\, stored\, by\, antenna}\)
• B. \(4π×\frac{Total \,energy \,stored \,by\, antenna}{energy\, radiated\, per \,cycle}\)
• C. \(4π×\frac{energy \,radiated\, per \,cycle}{Total \,energy\, stored \,by \,antenna}\)
• D. \(2π×\frac{Total \,energy\, stored\, by \,antenna}{energy\, radiated \,per \,cycle}\)