Which of the following are paramagnetic? A. [NiCl4] 2- B. Ni(CO)4 C. [Ni(CN)4] 2- D. [Ni(H2O)6] 2+ E. Ni(PPh3)4 Choose the correct answer from the options given below :

1. A. A, D and E only
2. B. A and C only
3. C. B and E only
4. D. A and D only

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