Concept:
Important mineral resources are associated with specific mining regions in India.
Step 1: Match Copper.
Khetri in Rajasthan is famous for copper deposits.
\[
A\rightarrow IV
\]
Step 2: Match Lead and zinc.
Zawar in Rajasthan is known for lead and zinc deposits.
\[
B\rightarrow III
\]
Step 3: Match Iron.
Bastar region is associated with iron ore deposits.
\[
C\rightarrow II
\]
Step 4: Match Fluorite.
Ambadongar is known for fluorite deposits.
\[
D\rightarrow I
\]
Therefore, the correct matching is:
\[
A-IV,\ B-III,\ C-II,\ D-I
\]
\[
\therefore \text{Correct Answer is (C)}
\]