Identify the Conditions Where the Labour Demand Curve Will Shift

Identify the conditions where the labour demand curve will shift?
(i) there is a change in productivity
(ii) there is a change in output prices
(iii) there is a change in wage levels

A) (i) and (ii)
B) (ii) and (iii)
C) (i) and (iii)
D) (i) , (ii) and (iii)