The correct answer is: B) Green gram
Green gram, also known as mung bean, is a legume that is widely grown in India. It is a popular crop for intercropping, which is the practice of growing two or more crops together in the same field. Green gram is a good choice for intercropping because it is a fast-growing crop that can be harvested in a short period of time. This makes it ideal for growing in short periods between main crops.
Maize, castor, and vegetables are also crops that are grown in Telangana. However, they are not as well-suited for intercropping as green gram. Maize is a tall crop that requires a lot of space, while castor is a poisonous plant that can be harmful to other crops. Vegetables are a diverse group of crops that have different growing requirements. Some vegetables, such as tomatoes, can be grown in short periods between main crops, while others, such as broccoli, require more time to mature.
Therefore, green gram is the best choice for intercropping in Telangana during short periods between main crops.