Which of the following are valid for Pauli matrices. I. [₂0₂] = 210₂ II. [0₂0₂ +0₂0₂] = 0x III. [ay] =-2i0₂ IV. [0,0₂ +0₂0₂] = 0 Select correct choice: (a) I, II and III (b) I and IV (c) II, III, and IV (d) III and IV

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