Development of an embryo from fertilization to the fetus stage

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.

I'm pretty sure that the answer is c.

Yes and no. physicaly some people move in the bed in their sleep. but mentally  our brain is moving that's when you are dreaming.