How to write an good answer in F8

Do read an examiner’s report (any!) for a clear steer on what the examiner is looking for, with examples: https://www.accaglobal.com/uk/en/student/exam-support-resources/fundamentals-exams-study-resources/f8/examiners-reports.html

The easiest way to explain a risk is to use information in the scenario to state what could be wrong in the financial statements – use the financial statement assertions (learn them – Chapter 16). So for example, if the scenario indicates a change in credit control (e.g. offering extended credit or some breakdown in control):
“The [fact] increases the risk of OVERstatement (or OVERvaluation) of trade receivables because [debts may be irrecoverable/the allowance for irrecoverable debts may be insufficient]”
How you respond to the risk depends on what gives rise to the risk. This might involve discussion with management to determine the extent of the problem e.g. whether/how/when the control deficiency has been rectified – but remember that discussion provides only internal/oral evidence. So, if possible, try to suggest something more substantive. For example, “Extend testing on after-date cash receipts and discuss with management whether further allowance should be made for slow payers.”