Step 1:
Rāma ends in “a”, Ramā ends in “ā”, and Hari ends in “i”.
Step 2:
Nadī ends in “ī”, while Svayambhū ends in “ū”.
Step 3:
The sequence becomes:
\[
a \rightarrow ā \rightarrow i \rightarrow ī \rightarrow ū
\]
Step 4:
Thus, the correct order is:
\[
B \rightarrow D \rightarrow A \rightarrow E \rightarrow C
\]
Hence, the correct option is:
\[
\boxed{\text{(3)}}
\]