In 2013, which innovative promotional campaign helped Uber rapidly expand its user base by offering free rides in which unique transportation option?

Transportation has been revolutionized by ride-sharing services, changing how we move through cities and creating new business models. One company in particular transformed an entire industry through innovative marketing and technology deployment. This poll tests your knowledge about a pivotal marketing campaign that helped establish one of transportation's biggest disruptors.

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UberCHOPPER - helicopter rides between Manhattan and the Hamptons
UberBOAT - water taxi services in major coastal cities
UberBIKE - electric bicycle sharing in congested downtown areas
UberJET - private jet services for cross-country business travelers