How many d electrons are in the lower and upper states for [Ru(NH3)5H2O]2+ (low spin)?

How many d electrons are in the lower and upper states for [Ru(NH3)5H2O]2+ (low spin)? A. 4, 2 B. 6, 0 C. 6, 1 D. 5, 2What is the correct number of d electrons associated with the central metal ion in each of the following complexes?(i) [Ru(en)3]Cl3(ii) K2[Cu(CN)4] A. i = 5, ii = 9 B. i = 7, ii = 11 C. i = 4, ii = 9 D. i = 6, ii = 8 E. i = 5, ii = 8