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_13 (regulations VARCHAR, winning_drivers VARCHAR)
### Question:
What regulations have carlos arzani as the winning driver?
### Answer:
SELECT regulations FROM table_name_13 WHERE winning_drivers = "carlos arzani"