What are the 4 C's of yield management?

I'm curious to understand more about the 4 C's of yield management. Could you elaborate on what they are and how they contribute to effective revenue generation in the hospitality industry? I'm particularly interested in understanding how these principles apply to the dynamic pricing strategies employed by hotels and other accommodations. Is there a specific order or hierarchy to these 4 C's, or are they all equally important in achieving optimal yield?