i think its the first one because having n adult around is good but not always effective and having no friends makes no sense. i guess the last one makes sense but its not very relivant to the question so-
<em><u>The future of transportation involves moving into new, smarter sources of energy, modes of transport and physical and technological infrastructure to support these transportation innovations. Three common themes in transportation innovation are: smart technology. electrification</u></em>
