Which Amazon transportation innovation was first introduced in 2016 and has since transformed last-mile delivery economics in the transportation industry?

Amazon revolutionized e-commerce, but it also significantly transformed transportation logistics. This poll tests your knowledge about how Amazon's innovations have specifically impacted the transportation industry, from last-mile delivery solutions to warehouse automation. Understanding these innovations helps product managers in transportation anticipate future trends and consumer expectations in mobility and logistics services.

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Amazon Flex (gig economy delivery partners using personal vehicles)
Amazon Scout (autonomous sidewalk delivery robots)
Amazon Prime Air (drone delivery service)
Amazon Delivery Service Partner program (DSP)