The vegetable obtained from flower :

(a) Potato is a vegetable which is obtained from the stem of its plant. It is also a good source of carbohydrates. And (c) ladyfinger is a technical fruit of a plant and it is picked from the plant. (d) Tomato is also a fruit which is counted as a vegetable. It is also plucked as fruits. While Cauliflower is a vegetable which is actually a flower of the plant. Hence that is why Cauliflower is a vegetable obtained from a flower.