If you were to pour 4 different liquids into a glass and the liquids separated into 4 layers, which liquid would have the highest density?

Let's suppose the four liquids are,
                                        1. Honey
                                        2. Dish Soap
                                        3. Water
                                        5. Vegetable Oil
Among these liquids Honey has the highest density (1.45 kg/l) and vegetable oil has the lowest (0.91 to 0.93 g/cm3 ) while water and dish soap has second highest and third highest density respectively.
When these liquids are mixed, Honey with the highest density will form the layer at the bottom of the glass.

The answer is letter c