A temperature `T` is measured by a constant volume gas thermometer
(i) `T` is independent of the gas used at all pressure
(ii) `T` is independent of the gas used only at low pressure
(iii) The ideal gas scale agrees with the absolute scale of temperature
(iv) The ideal gas scale does not agrees with the absolute scale of temperature

Options

A. T is independent of the gas used for all pressures
B. T is independent of the gass used only at low pressure
C. The ideal gas scale agrees with the abosulute scale of temperature
D. The ideal gas scale does not agree with the absolute scale of temperature.