Saanjh is a manager in a large Indian mining company. His department is responsible for collecting ore. This means that he and his employees are collecting . A. sand that will be stored and turned into glass B. natural gas that is still deep inside rock C. metal that has not yet been refined D. soil that needs to be fertilized

Metal that has not yet been refined.

Explanation:

The mining companies are companies that are involved in the extraction of natural resources from the crust. They can operate on land or in water. The extraction of natural resources involves numerous things, such as oil, natural gas, and metals.

When it comes to the extraction of metals, the term that is used is ore. Ore refers to the metal that has still not been refined, or rather it is in its natural form and is not useable without manufacturing it. The extraction of ore is among the biggest businesses in the world, and many countries in the world have it as the number one or one of the top economic contributors.

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.