Answer:
D
Step-by-step explanation:
Using the sine ratio in the right triangle
sin B = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{2}{9}[/tex] , thus
B = [tex]sin^{-1}[/tex] ([tex]\frac{2}{9}[/tex] ) ≈ 12.84° → D
