Answer:
The sentence seems to be complete except if it is complete it needs a period to be actually completed
Answer:
B) "He sprints home even though it is very hot"
Explanation:
It seems as though the Author's purpose is to appeal to a reader's sense of positivity.
3D printing is incredibly resource efficient since the only material consumed is what passes under the laser (or through the extruder, etc.), whereas traditional manufacturing requires the use of extra materials (molds for injection molding, scraps for perforated sheet metal assembly, etc.)
