Final answer:
Correct comma usage enhances sentence clarity and structure.
Explanation:
In sentence A, the commas are used correctly to set off the interrupting phrase 'especially since your cooking is so good.' This phrase interrupts the main clause 'I hate to miss your barbecue, but we have other plans tomorrow.' The correct use of commas helps clarify the sentence's structure.
Incorrect usage of commas can lead to confusion in a sentence. For example, in sentence D, the commas are not placed correctly, creating a run-on sentence that lacks clarity and proper structure due to the incorrect separation of clauses.
Understanding how to use commas to separate interrupting words or phrases is essential for maintaining the coherence and readability of sentences.
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