The correct answer is:
Their characters are generally flat and merely function as symbols for particular concepts.
Explanation:
Writers or speakers typically use allegories as discovered devices or as rhetorical devices that convey (semi-)hidden instead complicated applications by symbolic figures, actions, metaphors, or events, which collectively create the moral, spiritual, or political interest the author wishes to write Classical allegories are metaphorical in nature. This means that they include metaphors, imagery, and symbolical messages all eventually the story. Stories are often philosophical and political in nature that could impose morals or education. Allegories are involved in nature and are often thought-provoking and can be defined uniquely by each of its readers, spectators or listeners. On the other hand, genuine fiction is a type of fiction in which the story has elements that can be seen by the audience as something that is currently subsisting and convincing to them.
My English is a tad rusty, but I think the subordinating conjunction is "because".
The aspect of this poem that most clearly marks it as a work of Modernism is D. It avoids using rhythm or rhyme. In poetry, this writing style is called 'free verse' and it is characterized as an open form of poetry, reading which you will never see a meter patterns or rhyme. Such form was favoured with poets of Modernism; they usually follow the rhythm of natural speech just as if you reading simple letter or something like this.
C is the choice I would make because I believe the writer is planning to answer this question: "and how come we think dogs are so smart". The writer never tells us what dogs can't do (a) or mention others being dumb (b) and doesn't make fun of humans (d)