The diagram shows a chromatogram of the colourless acids found in a drink. The chromatogram has been treated with a locating agent. A table of $R_f$ values for the possible acids is given. Which acids are present in the drink?
- Acitric acid, malic acid and lactic acid
- Bcitric acid, malic acid and succinic acid
- Cmalic acid, lactic acid and succinic acid
- Dtartaric acid, citric acid and malic acid