A logic circuit has three inputs w, x, y and an output z. This output ‘z’ is ‘1’ for the following combinations.

(i) When x is True (1) and y is False (0)

(ii) When w and x are False (0)

(iii) When w, x, y are False (0)

Then the minimized expression for z is?

1.

2.

3.

4.