Two loudspeakers are placed 5.5 m apart. They produce the same sounds, in phase, across a frequency range of 1490 Hz to 1812 Hz. Point P is located 5.10 m away from one loudspeaker and 3.6 m away from the other. What frequency of sound from the two speakers will produce destructive interference at point P? Assume the speed of sound is 344 m/s. A) 1700 Hz B) 1720 Hz C) 1740 Hz D) 1790 Hz E) 1760 Hz