In order to be considered sufficient, documentation should be prepared so that an experienced auditor, with no prior connection with the engagement, can understand 1. the nature, timing, and extent of procedures performed. 2. the difficulty of the audit. 3. results of procedures and evidence obtained. 4. conclusions reached and significant judgments made. Multiple Choice 1,3 1,3 , and 4 1,2,3, and 4 3 and 4