3. The written basis for the auditor's conclusions

a ) Audit trail

b) Administrative files

c) engagement letter

d) permanent file

e) planiing memorandum

f) Audit documentation

g) termination letter

4. A file that contains information of continuing audit significance

a) Audit trail

b) administrative files

c) engagement letter

d) permane file

e) planing memorandum

f) Audit documentation

g) termination letter