Which of the following is an example of turning Perrier, producer of bottled mineral water, into a multi-sided platform (MSP) by opening the door to third parties? 1) Partnering with BASF, a chemical company, in the production of recyclable bottles to be used by Perrier. 2)Partnering with BASF, a chemical company, in recycling the used Perrier bottles. 3)Creating an online contest for third-party bottle designs for Perrier bottles. Designers do not interact with consumers. 4) Creating an online contest where consumers can remix flavors provided by BASF, a chemical company, to introduce new flavored Perrier waters