Correct Answer:
B. B. کھلنڈرا بچہ کہاں
The Urdu phrase "طفل مکتب" (Tifl-e-Maktab) idiomatically denotes a beginner or novice, often implying an inexperienced or playful child. Therefore, B. کھلنڈرا بچہ کہاں (where is the playful child) is the most accurate interpretation. Options A and C represent different concepts, not the idiomatic sense of a novice.