Air Travel Today Is Not Very Glamorous and Takes a Lot

Air travel today is not very glamorous and takes a lot of patience but many changes have occurred to enhance convenience for travelers.First,consumers can book their own travel via the Web rather than use a travel agent.Before their flight,they can check-in remotely via their smart phone or other mobile device and print their boarding pass.Alternately,they can use their smart phone to display their boarding pass to the gate agent who scans the digital image.Once on-board and safely cruising,some airlines offer in-flight wifi to enable travelers to check their e-mail,send documents,surf the web or catch up on a Netflix series or movie.These conveniences are most related to the ________ environmental factor.

A) ​technological
B) ​social-cultural
C) ​political-legal
D) ​economic