Data Sufficiency

Got this from one of my GMAT review books:

A type of candy comes in two flavors, sweet and sour, and in two colors, yellow and green. The color and flavor of the individual pieces of candy are not related. If in a certain box of this candy 1/4 of the yellow pieces and 5/7 of the green pieces are sour, what is the ratio of the number of yellow pieces to the number of green pieces in the box?

(1) In the box, the number of sweet yellow pieces is equal to the number of sour green pieces.

(2) In the box, the number of green pieces is two less than the number of yellow pieces.

I think the answer is C, but I'm not too sure.

In this Question A is correct because


the number of sweet yellow pieces is equal to the number of sour green pieces.

1/4 of the yellow pieces and 5/7 of the green pieces are sour
3/4 of the yellow pieces and 2/7 of the green pieces are sweat

hence as per the above cdt
3/4 y = 5/7g

there fore we can get y/g hence correct


2) the number of green pieces is two less than the number of yellow pieces
g = y-2 -- Data insufficient

hence I go with A