43. Which of the following statements is true about coordination complexes? (A)the metal is a Lewis base and the ligands are Lewis acids (B)only complexes with coordination number 6 are found in nature (C)when the ligands approach a transition metal ion in an octahedral field, the \( d_{xz} \), \( d_{yz} \), and \( d_{xy} \) atomic orbitals are affected the least by the ligands (D)none of these is true (E)all of these are true