When the pre-consolidation pressure σₚ‘ is greater than initial effective pressure σ’₀ but smaller than effective pressure σ’, then the final settlement is calculated on the basis of ___________

• A. settlement due to σ’₀ to σₚ‘ using Cₛ only
• B. settlement due to σₚ‘ to σ’ using Cc only
• C. settlement due to σ’₀ to σₚ‘ using Cₛ and settlement due to σₚ‘ to σ’ using Cc
• D. settlement due to σ’ to σₚ‘ using Cc and settlement due to σₚ‘ to σ’ using Cc