The correct answer is B. 59.
According to the Economic Survey 2019-20, there are 59 herbal parks in Haryana. These parks are spread across the state and are home to a variety of medicinal plants. The parks are open to the public and offer a variety of activities, such as guided tours, herbal workshops, and yoga classes.
The parks are a popular tourist destination and offer a unique opportunity to learn about the medicinal properties of plants. They also play an important role in the conservation of medicinal plants.
Here is a brief explanation of each option:
- Option A: 51. This is the number of herbal parks that were in Haryana in 2018. However, the number of parks has increased since then.
- Option B: 59. This is the correct answer.
- Option C: 70. This is the number of herbal parks that are planned to be built in Haryana in the future.
- Option D: 75. This is the number of herbal parks that are in Uttar Pradesh.