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_1974545_3 (basketball_arena VARCHAR, capacity VARCHAR)
### Question:
How many basketball arenas are there that belong to a school with a capacity of 3,000?
### Answer:
SELECT COUNT(basketball_arena) FROM table_1974545_3 WHERE capacity = "3,000"