The institute for supply management: (a) establishes laws and regulations for supply management.(b) is an agency of the united nations charged with promoting ethical conduct globally.(c) publishes the principles and standards for ethical supply management conduct.(d) prohibits backward integration into developing economies.(e) grants ph. d. degrees in purchasing.

C) publishes the principles and standards for ethical supply management conduct.

Explanation: Institute for Supply Management (ISM) is the US institute which amongst the oldest association for the supply of management. It is a association for education that provides the education services,training, research,information etc. It is the largest responsible institute for the management supply. So, the correct option is option(c) .