A set of processors P1, P2, ……, Pk can execute in parallel if Bernstein’s conditions are satisfied on a pairwise basis; that is P1 || P2 || P3 || ….. || Pk if and only if : (A) Pi || Pj for all i ≠ j (B) Pi || Pj for all i = j+1 (C) Pi || Pj for all i < j (D) Pi || Pj for all i > j