Refer to the input text as context and select the correct relationship between 'Porter Novelli' and 'public relations' from the available options.
Options: platform, currency, industry, business division

NEW YORK, Aug. 20, 2015 /PRNewswire/ -- Global public relations leader Porter Novelli (PN) announced that Catherine Fink has joined its New York office as executive vice president, health and wellness.
industry