This is an assessment so maybe give an explanation? :)

I believe it c.

Step-by-step explanation:

I had this question awhile back and I think that's it

The first urn has 8 white balls and 8 yellow balls
There are 16 balls in all, in which 8 are white.

8/16, or 1/2, is the probability from the first urn.

The second urn has 10 white balls and 3 yellow balls
There are 13 balls in all, in which 10 are white

10/13, is the probability from the second urn.

multiply the two fractions together: 

10/13 x 1/2 = 10/26

10/26 simplified = 5/13

5/13, or D is your answer

hope this helps