Which of the Following Statements Concerning the Interference Pattern Described

Multiple Choice

Which of the following statements concerning the interference pattern described by the phasor diagram is true?

A) There are exactly seven coherent sources.
B) There is a relative minimum at the point in the pattern corresponding to the phasor diagram.
C) The amplitude of the resultant wave at the point in the pattern corresponding to the phasor diagram is less than the amplitudes of the individual waves.
D) The diagram corresponds to the third bright spot in the interference pattern.
E) None of these is correct.