The table shows the percentages of hydrocarbons that are found in a sample of crude oil.HydrocarbonsPercentageparaffins30naphthenes49aromatics15asphaltics6.0Based on the given information, what is the best classification for this sample of crude oil?

The sample contains four different types of hydrocarbons: paraffins, naphthenes, aromatics, and asphaltics. Since it is made of multiple substances in specified percentages, it is a mixture, not an element or a pure substance. The best classification is choice D, a mixture.

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