A sample of a mixture was analysed using gas chromatography, producing the chromatogram shown below.
Which of the following statements is correct?
The mixture contains at least four different compounds.
The compound with a retention time of 1.2 minutes1.2\text{ minutes}1.2 minutes is present in the largest quantity.
The retention time is the time taken for the entire sample to evaporate.
Each compound in the mixture has the same affinity for the stationary phase.