Step 1: Understanding the question.
Bailladilla is famous for its iron ore mines, and it is one of the largest sources of iron ore in India.
Step 2: Analyzing the options.
(A) लोहा-अयस्क के लिए: Correct — Bailladilla is known for its rich iron ore reserves.
(B) कोयला के लिए: This is incorrect as Bailladilla is not known for coal mining.
(C) ताँबा के लिए: This is incorrect as it is not known for copper mining.
(D) अभ्रक के लिए: This is incorrect as Bailladilla is not associated with mica mining.
Step 3: Conclusion.
The correct answer is (A) लोहा-अयस्क के लिए, as Bailladilla is known for its iron ore.