Which one of the following is cultivated by transplanting seedlings?

1. The question asks which of the listed crops is commonly cultivated by transplanting seedlings. 2. Transplanting is an agricultural practice where seedlings are first raised in a nursery and later planted in the main field. 3. Maize, Sorghum, and Soyabean are typically grown by direct seeding into the field. 4. Onion cultivation frequently involves sowing seeds in a nursery bed to raise seedlings, which are then transplanted to the main field for better crop establishment and management. 5. Rice is another major crop predominantly cultivated using the transplanting method.