Pls help I rlly need help

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Which must be true in order for the relationship △zyv ~ △xwv to be correct? zy ∥ wx ∠z ≅ ∠y and ∠w ≅ ∠x zv ≅ vy and wv ≅ vx ∠z ≅ ∠x and ∠w ≅ ∠y

Factor the polynomial by its greatest common monomial factor.