Let |z₁|= 1, |z₂|=2, |z3|= 3 and z₁+z₂+z3=3+√ then the value of Re(Z₁ Z2 + Z2 Z3 + Z3 Z₁) is e to (where Z₁, Z₂ and z, are complex numbers) (A) 1 (B) -1 (C) - 1 (D) 0

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