8) B

To solve this, we need to use the 2nd table and find the ratio of unpaid work of men and work for each age category. (Use approximate figures)

25 and under: 12/8 = 4/3 = 1.33
26 to 35 = 34/17 = 2
36 to 45 = 33/20 = 1.65
46 to 55 = 26/18 ≈ less than 1

(Of course you can calculate the actual figure but that would be a waste of time as we know that the highest figure so far is 2. If the fraction is definitely less than 2, there is no point calculating the actual ratio).
56 and over = 25/17 ≈ less than 1

So the answer is B (26 to 35).