Refer to the input text as context and select the correct relationship between 'Magic Quadrant' and 'Gartner' from the available options.
Options: original broadcaster, operator, headquarters location, creator

RingCentral , Inc. (NYSE:RNG), a leading provider of cloud business communication solutions, today announced that Gartner has recognized RingCentral as a leader in the Magic Quadrant for Unified Communications as a Service (UCaaS) Worldwide published on September 3, 2015.
creator