Final answer:
The sentence using commas correctly with coordinate adjectives is 'Mr. Buckwalter lives in an old, vandalized house,' since 'old' and 'vandalized' equally describe 'house' and can be separated by 'and' or switched in order without altering meaning.
Step-by-step explanation:
The sentence that uses commas correctly with coordinate adjectives is B) Mr. Buckwalter lives in an old, vandalized house.
Coordinate adjectives are two or more adjectives that modify the same noun equally and are separated by commas. To test whether adjectives are coordinate, you can try placing the word 'and' between them or changing their order. If the sentence still makes sense, the adjectives are coordinate. For instance, 'old and vandalized house' still makes sense, showing that 'old' and 'vandalized' are coordinate adjectives.
In contrast, in sentence A, 'tall' and 'green' describe 'grass' but do not require a comma between them since 'tall green' functions as a compound adjective describing 'grass.'