Concept:
Cheeses are classified based on moisture content and ripening method.
Step 1: Very hard cheese.
• Parmesan is very hard with low moisture
Step 2: Hard cheese.
• Cheddar falls under hard category
Step 3: Semi-hard cheese.
• Limburger has moderate moisture
Step 4: Soft mould ripened cheese.
• Camembert has surface mould ripening
Step 5: Matching.
\[
A \rightarrow II,\quad B \rightarrow III,\quad C \rightarrow IV,\quad D \rightarrow I
\]
Conclusion: Option (2) correct.