Write SQL query to solve given problem: Which are the courses with the most number of professors? State the course ID and the level of the course.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.course_id, T1.courseLevel FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id GROUP BY T1.course_id, T1.courseLevel ORDER BY COUNT(T1.course_id) DESC LIMIT 1