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_10753917_1 (season VARCHAR, driver VARCHAR)
### Question:
How many seasons was clay regazzoni the driver?
### Answer:
SELECT COUNT(season) FROM table_10753917_1 WHERE driver = "Clay Regazzoni"