Consider the locus of the complex number z in the Argand plane is given by Re(z) -2 = |z - 7 + 2i|. Let P(z1) and Q (z2) be two complex number satisfying the given locus and also satisfying arg (z1 - (2 + αi/z2 -(2 + αi)) = π/2 (α ∈ R) then the minimum value of PQ is divisible by
(A) 3
(B) 5
(C) 7
(D) 2
