A quantum chemistry program indicates that the dipole moment of PH₃ is zero. Which statement(s) best explains this result?
A. PH₃ violates the octet rule and does not exist.
B. The electronegativities of P and H are very close in value; therefore, no bond dipoles exist.
C. PH₃ is a trigonal planar structure and the bond dipoles cancel. D. A, B, and C
E. A and C only