Finish the following sentence with the best choice: To add fragrance to glycerin for making soap.  Options: Add oils after soap has melted. - Add oils after soap has melted. - Add oils after soap has melted. Brush oils after soap had been molded. - Brush oils after soap had been molded.  ️<unk>️<unk>️<unk>️<unk>️
Add oils after soap has melted.