An exclamatory sentence always ends in C) An exclamation point. This is because you are crying out a loud voice, emphatic expression or a vociferation.
It's definitely B. It's only Boston that has to be capitalised as it is the name of a town.
<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>
It all flows together smoothly and it makes sense and doesn’t jump from place to place without any context