Which of these sustainable initiatives was FIRST successfully implemented by a major transportation retailer?

Test your knowledge about how major transportation retailers are transforming their operations to embrace sustainability. The transportation industry faces increasing pressure to reduce carbon footprints and develop eco-friendly alternatives. Major retailers in this sector have been implementing various strategies to meet environmental goals while maintaining profitability. This poll challenges you to identify which pioneering initiative has been successfully implemented by a major transportation retailer.

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Amazon's commitment to make 50% of all shipments net zero carbon by 2030 through the 'Shipment Zero' initiative
FedEx's investment in converting its entire parcel pickup and delivery fleet to all-electric vehicles by 2040
UPS's deployment of electric-assisted tricycles for last-mile deliveries in urban centers starting in 2012
DHL's introduction of sustainable aviation fuel (SAF) offsetting program for all air shipments in 2021