A group of 6 friends go to the Safari Restaurant. Four of the friends take the bus to the restaurant and 2 of the friends walk to the restaurant.
Select the 3 ways to write a ratio, in simplest form, describing the friends who took the bus to the friends who walked to the restaurant. Hint 3 are correct

A. 1:2
B. 1 to 2
C. 4:2
D. 2 to 1
E. 4/2
F. 2/1
G. 2:1