Which phrase best completes the sentence regarding CIAM's status as a language school?

The phrase "is second to none" effectively conveys that CIAM's status as a language school is unparalleled, emphasizing that it cannot be surpassed in quality or excellence. This expression is typically used to highlight superiority, asserting that there are no other schools that can rival CIAM’s reputation or performance.

The phrase creates a positive affirmation of CIAM's standing, suggesting that it offers exceptional language education that stands above others in the field. This is in direct contrast to the other phrases, which do not convey the same level of superiority or may even imply inferiority or mediocrity. Using "is second to none" positions CIAM as a leader in language education, which aligns with the context of the statement.