Which sentence has no errors in capitalization or punctuation?
A.
Joan remarked, "That advertisement says, Free movie tickets for the first 25 people."
B.
Joan remarked, "That advertisement says, 'Free movie tickets for the first 25 people'."
C.
Joan remarked, "That advertisement says, "Free movie tickets for the first 25 people."
D.
Joan remarked, "That advertisement says, 'Free movie tickets for the first 25 people.'"