C)The adjective phrase “really long and detailed” modifies the word “it.”
Explanation:
Adjective phrases are group of words standing together as a unit and containing at least one adjective and, sometimes, modifiers and complements, whose function is to modify, describe, or gives information about nouns. In the sentence, the adjective phrase is “really long and detailed” because it contains two adjectives: “long” and “detailed” and modifiers of those adjectives. Furthermore, it modifies and provides more information about “it” (the text).
I don't have time to do the whole essay here's an idea I guess:
I think that the United States should adopt a digital currency due to recent events of the pandemic and it would be more efficient. Cons could be that the system they use could get infiltrated but I doubt that could happen.