What does represent in the below equation? (K_{biphasic} = K_w ( frac{1+ P_B}{1+ P_A}) )

• A. ( frac{[B_w]}{[A_w]} )
• B. ( frac{V_{org}}{V_w} )
• C. ( frac{[B_t]}{[A_t]} )
• D. ( frac{[B_{org}]}{[B_w]} )