ANS:D - steam

Rose oil is typically extracted from rose petals using steam distillation. In steam distillation, steam is passed through the rose petals, carrying the volatile compounds (including the essential oil) with it. The steam, along with the extracted volatile compounds, is then condensed, allowing for the separation of the essential oil from the water. This method is commonly used for extracting essential oils from aromatic plants, including roses, as it allows for the gentle extraction of volatile compounds without subjecting them to high temperatures or harsh conditions.