For displaced concrete neglected and compression steel yields, DRB balance ratio is ρbal_DRB equal to which expression?

• A. ρbal_DRB = ρbal_SRB + ρ' (if displaced concrete neglected)
• B. ρbal_DRB = ρbal_SRB + ρ' (if displaced concrete neglected and compression steel yields)
• C. ρbal_DRB = ρbal_SRB + As2/bd
• D. ρbal_DRB = ρbal_SRB + ρ' (if displaced concrete neglected)

Answer: (B)