Assume the following flow of entities in a supply chain (a.k.a. value chain): input sector → farming sector → marketing sector → consumers → disposal. What is the correct order of entities in the supply chain?
1) Input sector → Farming sector → Marketing sector → Consumers → Disposal
2) Farming sector → Input sector → Marketing sector → Consumers → Disposal
3) Marketing sector → Farming sector → Input sector → Consumers → Disposal
4) Input sector → Marketing sector → Farming sector → Consumers → Disposal