4. Reasons to be stated for unfavourable or qualified answers.- (1) Where, in the auditor's report, the answer to any of the questions referred to in paragraph 3 is unfavourable or qualified, the auditor's report shall also state the basis for such unfavourable or qualified answer, as the case may be.
(2) Where the auditor is unable to express any opinion on any specified matter, his report shall indicate such fact together with the reasons as to why it is not possible for him to give his opinion on the same.