.The only sentence that contains a parallel structure is option B. Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal
Options A,C and D are not ´parallel structures because they do not carry the same tense
Parallel structure means that the items included in a list must be in the same form, in this case all main verbs are in the past simple
The adjective is "weekend," because it is describing the noun "conference."
Today and tomorrow are also adverbs, not adjectives :)
Paragraphs 2 and 3 address the counterclaim of the author’s argument by stating a common reason that people voluntour and then shoot them down with facts from their research.
It is the second option because optimist is someone who is hopeful.
I believe the type of figurative language is Imagery.
