c. the declaration of independence was bold, outrageous, and provocative.
Parallelism is a grammatical feature of language, where words and phrases linked with conjunction have the same structure and form.
An example of parallelism in a sentence is: "He carried a hat, umbrella and beach towel". In this sentence the linked words (hat, umbrella and beach towel are all nouns).
However, if the above sentence is phrased as: "He carried a hat, umbrella, and he also took along a beach towel", it has faulty parallelism as the linked words (hat, umbrella and beach towel) do not have the same form.