A Gas Chromatograph Can Be Used to Determine the Relative

A gas chromatograph can be used to determine the relative amounts of reactants and products by

A) measuring the changes in pressure as the reaction proceeds.
B) analyzing the intensity of the transmitted light.
C) separating the components of the mixture, which results in an individual peak for each component and the peaks are quantified.
D) measuring the degree of the polarization of light.
E) measuring the change in temperature of the reaction.