The correct option is D Allium cepa and Allium sativum
The botanical name of onion is Allium cepa. It is also known as the bulb onion or common onion and is used as a vegetable. It is widely cultivated species of the genus Allium. The onion is a biennial or a perennial plant. Allium sativum, commonly known as garlic, is a species in the genus Allium. It is a medicinal plant. The garlic bulb is also used in cooking.They belong to family Liliaceae.
Thus, the correct answer is option D.