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_16575609_3 (cfl_team VARCHAR, pick__number VARCHAR)
### Question:
How many cfl teams had pick # 21?
### Answer:
SELECT COUNT(cfl_team) FROM table_16575609_3 WHERE pick__number = 21