9. $A, B, C, D$ four people have some number of cards that are all different.
$A$ says: “I have 16 more cards than $C$.”
$B$ says: “$D$ has 6 more cards than $C$.”
$C$ says: “$A$ has 9 more cards than $D$.”
$D$ says: “If $A$ gives me 2 more cards, I will have 3 times as many cards as $C$.”
It is known that among these four people, the one with the fewest cards is the one who is wrong, and the others are right. How many cards does $D$ have?