Find the next three terms -960 ,480,-240 ,120

The pattern is to divide each one by negative 2, so they would be -60, 30, -15. Hope this helps!

The answer is c, i, iii, and iv. this is because farming and mining deal with harvesting raw materials, construction work falls under manufacturing, and piloting a plane is a service. ii is wrong because making bread is using  raw materials to produce goods, which would fall under the secondary sector, not primary.