The correct answer is: a) Roses, Marigolds, and Chrysanthemums.
Roses, marigolds, and chrysanthemums are the most popular cut flowers in Bihar. They are grown in large quantities and are exported to other parts of India and the world. Roses are the most popular cut flower in the world, and Bihar is one of the major producers of roses in India. Marigolds are also a popular cut flower in India, and Bihar is one of the major producers of marigolds in India. Chrysanthemums are a popular cut flower in the winter, and Bihar is one of the major producers of chrysanthemums in India.
Tulips, orchids, and lilies are also popular cut flowers, but they are not as popular as roses, marigolds, and chrysanthemums in Bihar. Daffodils, hydrangeas, and peonies are not as popular as roses, marigolds, chrysanthemums, tulips, orchids, and lilies in Bihar. Cactus, succulents, and bonsai plants are not considered to be cut flowers, and they are not grown in Bihar.