Oils are liquids at room temperature due to the presence of higher percentage of oleates present in the oils which are unsaturated fatty acids and if higher unsaturation is present melting point will be lower.
It would be Vegetable oil. Both fats and oils are molecules shaped like a capital E with a glycerol spine and arms made of fatty acid chains In plants, missing hydrogen atoms cause kinks in the fatty acids. This reduces the amount of intermolecular bonding that can occur and keeps the molecules liquid at room temperature
