问题详情

Which TWO of the following should be included in an audit engagement letter？ (1) Objective and scope of the audit (2) Results of previous audits (3) Management’s responsibilities (4) Need to maintain professional scepticism
A.1 and 2
B.1 and 3
C.2 and 4
D.3 and 4请帮忙给出正确答案和分析，谢谢！