Diwan-e-Al Zimma in the Abbasid era was linked to

Diwan-e-Al Zimma handled tax collection for non-Muslims; this question tests historical knowledge. Not audits or postal; A is correct. Understanding administration enhances historical awareness; this is vital for exams or Islamic history discussions; the system managed revenues; knowing roles aids in historical analysis; accurate knowledge ensures clarity in conversations about Abbasid governance or taxation; staying informed strengthens general knowledge; A aligns with the function.