Given that −1 ≤ v ≤ 1, −2 ≤ u ≤ −0.5 and −2 ≤ z ≤ −0.5 and w = vz/u, then which of the following is necessarily true?
−0.5 ≤ w ≤ 2
−4 ≤ w ≤ 4
−4 ≤ w ≤ 2
−2 ≤ w ≤ −0.5