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_90 (engine_type VARCHAR, model VARCHAR)
### Question:
What is the engine type with a model with base 2.4?
### Answer:
SELECT engine_type FROM table_name_90 WHERE model = "base 2.4"