Ineed a flowchart of proof for this question. if anyone can , it is super appreciated!

The answer to the question is c.

Answera discharge of static electricity;

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.

Ibelieve the answer would be a large-scale natural disaster