Correct Answer:
A. Salt
Khewra is a town located in the Jhelum District of Punjab, Pakistan, renowned globally for its extensive mineral deposits. The area is home to one of the world's oldest and largest salt mines, making it a significant site for mineral extraction.
- A: Salt is the correct answer. The Khewra Salt Mine is famous for producing high-quality Himalayan pink salt, which is exported worldwide. It is a major tourist attraction and a vital economic asset for Pakistan.
- B: Coal is mined in various parts of Pakistan, such as Thar, but Khewra is not primarily known for coal.
- C: Copper deposits are found in Pakistan, notably at Reko Diq, but not as the defining mineral of Khewra.
- D: Gypsum is also found in Pakistan, but again, it is not the mineral for which Khewra is most famous.
The Khewra Salt Mine's historical significance and vast reserves firmly establish its fame for salt.