History is filled with many things, things that may sound down to bone imaginative. Humans have come a long way since back then. From dynasty to dynasty era to era humans have been apart of history longer than we could imagine. Eras past and from each era that passes we learn more and more of the inventions that were made. Slowly but surely we as humans build further and further on the ideas left by the past dynasties. Creating better designs and better ways to use those inventions to their magnitudes.
Answer : ( A ) The Word Root
All of the above. The contractions makes it seem unprofessional amd the slang does too. If you better explain the purpose for writing, you are more likely to get the response you want. Hope this helps!
The Man who was smart in school, has grown up to be unintelligent