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Fruit of okra is a
(a)Siliqua
(b)Capsule
(c)Legume
(d)Berry

Answer
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Hint: Okra or also known as Okro is the name given to the ladyfinger plant (Abelmoschus esculentus). It is a vegetable crop valued for its edible green seed pods. The fruit of the Okra plant is a type of simple dry dehiscent fruit.

Complete answer:
The Okra plant is a flowering plant that belongs to the Malvaceae (mallow) family cultivated in tropical, subtropical, and warm temperate regions of the world. The pods along with the leaves, buds, and flowers of the Okra plant are consumed. The fruit of Okra is a capsule which is a simple dry fruit that is dehiscent in nature. A capsule is a multi-chambered and multi seeded fruit that develops from a multicarpellary, syncarpous superior ovary which means that there are 2-3 carpels present fused together. It usually has axile placentation in it and splits open on its own once the fruit ripens. Along with Okra, the capsule is seen in Datura, Poppy, Cotton, etc.

Additional Information: Siliqua: Siliqua is a type of simple dry dehiscent fruit that develops from bicarpellary (two carpels), syncarpous (fused carpels), superior ovary with parietal placentation. As it is a type of dehiscent fruit, it splits open after maturation from the ventral and dorsal suture. The ovary of such fruit is unilocular (one-chambered) but appears bilocular due to the formation of a false septum. Examples- Brassica (mustard), cabbage, radish.
Legume: This is also a type of simple dry dehiscent fruit that develops from a monocarpellary, unilocular, superior ovary. It is also known as pods. Dehiscence starts from the apex and proceeds towards the base along the ventral and dorsal sutures. Examples- Peas, Alfalfa, Beans, etc.
Berry: A berry is a type of simple fleshy fruit that develops from mono or multicarpellary, syncarpous ovary which may be superior or inferior. Plants that have superior ovary are known as true berry as seen in tomato, grapes, brinjal whereas plants that have inferior ovary are known as false berry as seen in guava, banana, etc.
So, the correct option is ‘Capsule’.

Note: -A simple fruit is known as a fruit that develops from the monocarpellary ovary or multicarpellary, syncarpous ovary but only one fruit is formed.
-A simple fruit is further divided into fleshy fruit and dry fruit.
-A fleshy fruit has its pericarp (fruit wall) divided into an outer epicarp, middle mesocarp, and inner endocarp whereas a dry fruit does not have its pericarp differentiated into layers.
-The term capsule is also used to refer to the spore-forming part of liverworts and mosses.