Answer:
[tex]\huge\boxed{\sf C.}[/tex]
Step-by-step explanation:
sin 45 = opposite / hypotenuse
Where opposite = x , hypotenuse = 4
sin 45 = x / 4
[tex]\sf \frac{\sqrt{2} }{2 } = \frac{x}{4} \\\\x = \frac{4\sqrt{2} }{2} \\\\x = 2\sqrt{2} \\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807
