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_name_41 (zone VARCHAR, camp_type VARCHAR, area VARCHAR)
### Question:
What zone has camp type D/S in area Bl9?
### Answer:
SELECT zone FROM table_name_41 WHERE camp_type = "d/s" AND area = "bl9"