what year did north carolina institution join the acc?
CREATE TABLE table_28744929_1 (
    joined_acc INTEGER,
    institution VARCHAR
)
SELECT MAX(joined_acc) FROM table_28744929_1 WHERE institution = "North Carolina"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: what year did north carolina institution join the acc? ### Input: CREATE TABLE table_28744929_1 (
    joined_acc INTEGER,
    institution VARCHAR
) ### Response: SELECT MAX(joined_acc) FROM table_28744929_1 WHERE institution = "North Carolina"