What are the values of $V_C$,$P_C$,and $T_C$ in terms of van der Waals constants $a$ and $b$?
- A$V_C = 3b, P_C = \frac{a}{27b^2}, T_C = \frac{8a}{27Rb}$
- B$V_C = b, P_C = \frac{a}{27b^2}, T_C = \frac{8a}{27Rb}$
- C$V_C = 3b, P_C = \frac{a}{27b}, T_C = \frac{8a}{27Rb}$
- D$V_C = 3b, P_C = \frac{a}{27b^2}, T_C = \frac{8a}{27R}$
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