Step 1:
Direct materials are those materials that become a part of the finished product.
Example:
\[
\text{Wood used in furniture}
\]
Thus:
\[
A \rightarrow I
\]
Step 2:
Indirect materials assist production but do not become a major part of the product.
Example:
\[
\text{Lubricating oil}
\]
Thus:
\[
B \rightarrow II
\]
Step 3:
• Factory supervisor salary $\rightarrow$ Indirect Labour
• Factory rent $\rightarrow$ Indirect Expense
Thus:
\[
C \rightarrow III
\]
\[
D \rightarrow IV
\]
Step 4:
Final matching:
\[
A-I,\; B-II,\; C-III,\; D-IV
\]
Hence, the correct answer is:
\[
\boxed{\text{(1) A-I, B-II, C-III, D-IV}}
\]