Answer:
Option 4, categorized as conflict minerals
Step-by-step explanation:
The four minerals primarily
a) Coltan – Titanium is extracted from this
b) Cassiterite - tin is extracted from this
c) Gold
d) Wolframite – tungsten is derived from this
And their derivatives are considered as conflict minerals. These are collectively known as T3G minerals.
A regulation has been defined to report conflict minerals compliance in which the information about the entire supply chain along with essential information such as country from which the mineral originated, smelters and refineries being utilizes etc. to cater the conflict between the Congo Republic and its adjoining countries.
Hence, option 4 is correct