Answer: B
Step-by-step explanation:
We can triple all the coordinates, so:
[tex]A'=(3 \cdot 3, 3 \cdot 3)=(9, 9)\\B'=(6 \cdot 3, 6 \cdot 6)=(18, 18)\\C'(9 \cdot 3, 3 \cdot 3)=(27, 9)[/tex]
