Answer: A. They’re still not finished with the project that was due yesterday.
Homophones are words pronounced the same way but with different spellings and meanings. In the question, “there”, “their”, and “they’re” are common homophones but not all of them are placed correctly to make sense in their respective sentences. Option B used a “their” at the very beginning of the sentence instead of a “there”, option C used a “there” mid-sentence instead of a “their”, while option D used a “their” instead of a “there” at the end of the sentence. All of these words have the same pronunciations but with different spellings and meanings.