To determine the value of `R`, which of the `PV` value is considered to be equal for every gas at `273 K`?
A. `underset(P rarr 1 atm)lim (PV_(m))`
B. `underset(P rarr 0)lim (PV_(m))`
C. `underset(P rarr oo)lim (PV_(m))`
D. `underset(Vrarr 0)lim (PV_(m))`