What does each letter of the ideal gas law represent?

Question

$\begin{array}{1 1} \text{(a) P: potential energy, V: velocity, n: moles, R: ideal gas constant T: total energy} \\ \text{(b)P: pressure, V: volume, n: moles, R: ideal gas constant, T: temperature,} \\ \text{(c)P: pressure V: volume n: moles R: rate T: time} \\ \text{(d) P: pressure, V: volume, n: moles, R: ideal gas constant, T: time} \end{array}$