It should be apparent from the case scenarios – e.g. the scenario for the first 5 Qs of set 1 starts
“You are …. conducting the AUDIT PLANNING …” so the topics you should expect to be associated with that are risk and materiality.
It should take you only a minute to review each scenario and work out what is the syllabus area.
If you haven’t attempted them, even though there will be no standalone OTs in the AA exam, you may find the end-of-chapter practice Qs useful https://opentuition.com/acca/aa/aa-practice-questions – they all have answer justifications.