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According to Merriam-Webster, a boca is a river mouth, or a harbor entrance.
If I'm wrong, I'm sorry, but...
Hope that helped!
In the sentence "Radio, the earlier invention, gave listeners only sound" there are four nouns, thus four possible objects: Radio, invention, listeners, and sound.
Radio is the subject which "gave" the indirect object "sound" to the direct object "listeners."
Answer:
I think it might be A.
Explanation:
B/c of the "I" in "campaIn" is not supposed to be capitalized OWO