The answer is E. Groundnut.
The other four options are all edible seeds. Mustard seeds are used in a variety of cuisines, including Indian, Chinese, and Japanese. Ginger is a root that is used in both sweet and savory dishes. Rapeseed is a type of oilseed that is used to make canola oil. Sesame seeds are used in a variety of dishes, including hummus, tahini, and sesame oil.
Groundnuts, on the other hand, are not seeds. They are legumes, which are a type of plant that produces pods. The pods contain the groundnut seeds, which are also called peanuts. Groundnuts are a popular snack food and are also used in a variety of dishes, such as peanut butter, peanut oil, and peanut soup.