Refer to the input text as context and select the correct relationship between 'KPMG' and 'audit' from the available options.
Options: product/material produced, position held, brand, location of formation

Also bear in mind that KPMG and its Big Four audit firm brethren advise government on tax policy – such as advocating a thumping increase in the GST – when they can't get their accounts right.
product/material produced