Which sentence is punctuated correctly? a) my father touched the tree, the tallest one around for twenty acres, and said, "i think it's an ash tree." b) my father touched the tree the tallest one around for twenty acres, and said, "i think it's an ash tree." c) my father touched the tree, the tallest one around for twenty acres and said, "i think it's an ash tree." d) my father touched the tree the tallest one around for twenty acres and said, "i think it's an ash tree."