Explanation

The question asks for two prophets mentioned exactly 27 times, and based on common Quranic counts, this specific pairing is not definitively established. Option A mentions Muhammad (S.A.W) and Ishaq (A.S), which are major figures but the count of 27 for both is questionable. Option B mentions Haroon (A.S) and Zakria (A.S); their mention counts are unlikely to be exactly 27 each. Option C mentions Lut A.S & Yousef (A.S), and while they are mentioned, this specific pairing with a count of 27 is not standard knowledge.