Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_1341690_21 (district VARCHAR, candidates VARCHAR)
### Question:
what is the district with the candidates edward boland (d) unopposed?
### Answer:
SELECT district FROM table_1341690_21 WHERE candidates = "Edward Boland (D) Unopposed"