In case of sinusoidal pulse width modulation with MI < 1, if the number of pulses per half cycle (N) = 6, then

• A. harmonics of order 7 and 9 become significant
• B. harmonics of order 7 and 9 are eliminated
• C. harmonics of order 11 and 13 become significant
• D. harmonics of order 11 and 13 are eliminated