It is necessary because if you don't have a confirmed opinion with textual evidence to back it up you wont have a good argument.
Romantic and Gothic literature are related though out the story line. Early 18th century, when the genres both came out in England, romanticism was related to horror and was against the Enlightment Era and was leaning more towards Neoclassicism. The Gothic and Romantic scene were closest related through the deeply felt emotions.
hope this helped :)
In medias res
It literally translates into "In the middle of things"
The medium of the story is No.C
The sentence could effectively be places in a summary of Chapter 4 of Wheels of Change because it expresses a key idea objectively is "<span>In the 1880s and 1890s, female bicycle racers faces a variety of opponents, including makes, horses, and an occasional dog."</span>