The method saveAsTable() creates a new table and optionally fails if the table exists.

From Spark documentation:

'The mode 'ErrorIfExists' (default) will throw an error if the table already exists.'

Thus:

Option A is correct.

Option B (Overwrite) would overwrite existing data --- not acceptable here.

Option C and D use save(), which doesn't create a managed table with metadata in the metastore.

Final Answer: A