Explanation:

- Cinnabar is primarily composed of mercuric sulfide (HgS).

- When cinnabar is processed, it yields mercury, a heavy, silvery d-block element.

- Correct Answer: Option 2 - Mercury

- Gold, platinum, and gallium are obtained from different ores:

- Gold is typically extracted from ores like native gold, calaverite, and sylvanite.

- Platinum is usually obtained from ores such as sperrylite and cooperite.

- Gallium is often extracted as a by-product from bauxite and zinc ores.