ISO audits result in certifications that are done by first, second, or third parties. Which of the following result in the best certification of a firm?
a) Certification is sought by any firm assuming they pay annual dues.
b) 2nd Party - where a customer audits its supplier
c) 3rd Party - where a qualified national or international standards/certifying agency serves as an auditor
d) 1st Party - where a firm audits itself against ISO standards