<prompt> Translate the following text to EnglishHati za ukaguzi zinatumika kwa sababu tatu kuu: 1 kutoa msaada wa msingi kwa ripoti ya wakaguzi, 2 kusaidia wakaguzi katika kufanya na kusimamia ukaguzi, na 3 kuruhusu ukaguzi wa ubora wa ukaguzi.  <response>: Audit documentation serves three main 1 to provide the principal support for the auditors report, 2 to aid auditors in conducting and supervising the audit, and 3 to allow for the review of audit quality. 