George and Zach started their own dog walking business on their school summer break. Their cost was very low, and they were able to grow rapidly. The summer break is coming to an end, and they must decide what to do with their business. They are thinking of hiring some people to keep their clients even if they must share the profits, or only offer the service on weekends. Thinking strategically, their decision is to

Core process, they built their business, and no one will understand their clients as much as they do$.$

Critical process, they will be able to find other walkers that will make their clients happy.

Relevant cost approach, they must ensure their revenue and costs are properly accounted for.

Commodity process, they won't lose any competitive advantage if they outsource the dog walking.