Correct option is A
The correct answer is (a) Sarnath.
· The Dhamek Stupa is located in Sarnath, near Varanasi in the state of Uttar Pradesh, India.
· This stupa is one of the most important Buddhist structures and is believed to mark the spot where Gautama Buddha gave his first sermon after attaining enlightenment.
· The stupa was originally built by Emperor Ashoka in 249 BCE, and it was later expanded to its current form in the 5th century CE.

Additional Information:
· The Dhamek Stupa is about 43.6 meters high and 28 meters in diameter, making it a significant and massive structure.
· The stupa is covered in intricate carvings, including geometrical and floral patterns, reflecting the artistic styles of the Gupta period.
· Sarnath itself is one of the four major pilgrimage sites in Buddhism, along with Lumbini, Bodh Gaya, and Kushinagar, each of which is associated with key events in Buddha's life.
Other Options:
· Shravasti: Shravasti is an ancient city associated with the Buddha, where he spent many rainy seasons and performed numerous miracles. However, the Dhamek Stupa is not located here.
· Kushinagar: Kushinagar is where Buddha attained Mahaparinirvana (final liberation) after his death, and it is known for the Mahaparinirvana Stupa. The Dhamek Stupa is not situated here.
· Bodh Gaya: Bodh Gaya is where Gautama Buddha attained enlightenment under the Bodhi tree. The Mahabodhi Temple, not the Dhamek Stupa, is the main attraction here.