Answer:
A
Step-by-step explanation:
The following ratio is true for any circle
[tex]\frac{arc}{C}[/tex] = [tex]\frac{centralangle}{360}[/tex] ← C is circumference
[tex]\frac{4}{C}[/tex] = [tex]\frac{30}{360}[/tex] ( cross- multiply )
30C = 1440 ( divide both sides by 30 )
C = 48 → A
