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_16403890_1 (enrollment INTEGER, affiliation VARCHAR)
### Question:
Private/Catholic school's minimum enrollment is?
### Answer:
SELECT MIN(enrollment) FROM table_16403890_1 WHERE affiliation = "Private/Catholic"