Which of the following best describes the reason that auditors are concerned with the detection of related party transactions?
a) Related party transactions often involve conflicts of interest and may not be conducted at arm's length.
b) Auditors are only concerned with transactions between unrelated parties.
c) Auditors do not need to be concerned with related party transactions as they are inherently trustworthy.
d) Related party transactions are always transparent and do not require auditing.