The ratio of pens to pencils in the box is 84 to 112. Which statement describes this relationship?

Responses
A There are 3 pens for every 4 pencils in the box.There are 3 pens for every 4 pencils in the box.
B There are 4 pens for every 6 pencils in the box.There are 4 pens for every 6 pencils in the box.
C There are 4 pens for every 3 pencils in the box.There are 4 pens for every 3 pencils in the box.
D There are 6 pens for every 4 pencils in the box.

A There are 3 pens for every 4 pencils in the box.

why