46. Which of the following is paramagnetic?
(A)\( [Zn(H_2O)_6]^{2+} \)
(B)\( [Co(NH_3)_6]^{3+} \) (strong field)
(C)\( [Cu(en)_3]^{2+} \)
(D)\( [Mn(en)_3]^{2+} \) (strong field)
(E)\( [Fe(en)_3]^{2+} \) (strong field)

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