Roses are perhaps the most complicated flower we can see. Their patterns, colors, and fragrances are ever-changing, ranging from elegant species of roses to fragrant garden roses and jewel-like modern hybrid roses. Today, all over the world There are more than 200 species of roses growing, and because people continue to try to get more beautiful, fragrant, and longer flowering roses through crossbreeding, our common garden and commercial rose varieties have been growing at a rate of every 5 years. It is very difficult to identify a kind of rose, and even the opinions of experts are often very different, because the type of roses is very easy to change and it is easy to hybridize; hybrid roses can not only be selected dry by manual control. Species are also formed naturally in large quantities. What does this text mean? ['Hybrid technology plays a significant role in breeding new rose varieties.', 'How to classify roses scientifically is inconclusive.', 'c. The commercial value of roses stimulates people to continuously develop new varieties.', 'Rose varieties are very complicated due to natural attributes and human needs.']