Concept:
Different Indian sculptural traditions used specific materials according to:
• Regional availability
• Religious requirements
• Technical suitability
Step 1:
The Dilwara Jain temples at Mount Abu are famous for:
\[
Marble sculpture
\]
Thus:
\[
A \rightarrow III
\]
Step 2:
Nalanda Buddhist sculptures are often carved in:
\[
Blackstone
\]
Thus:
\[
B \rightarrow IV
\]
Step 3:
The Rampurva Bull pillar capital belongs to the Mauryan period and is made of:
\[
Sandstone
\]
Thus:
\[
C \rightarrow I
\]
Step 4:
This Buddhist image is associated with:
\[
Metal with guilding
\]
Thus:
\[
D \rightarrow II
\]
Therefore, the correct matching is:
\[
A-III,\; B-IV,\; C-I,\; D-II
\]
Hence, the correct answer is:
\[
\boxed{\text{(1) A-III, B-IV, C-I, D-II}}
\]