i will give 10 brainly to whoever answers this for me im not this smart

Answer:
option C is correct.
Step-by-step explanation:
unit rate: [tex]\sf \dfrac{change \ in \ y}{change \ in \ x}[/tex]
A) [tex]\sf \frac{10}{4} / \frac{5}{6} = 3[/tex]
B) [tex]\sf \frac{1}{2} / \frac{2}{3} = \frac{3}{4}[/tex]
C) [tex]\sf \frac{4}{9} / \frac{4}{3} = \frac{1}{3}[/tex]
D) [tex]\sf \frac{3}{8} / \frac{1}{8} = 3[/tex]
/ - refers to division symbol