[H] In a recent study, 1,000 men and women were asked if they voted for candidates from different political parti in the last election. The results are displayed in the table. Men Women Total Yes, split ticket 600 a b No, did not split ticket 400 d Total 800 200 1,000 Choose the value for a such that we would conclude there is no association between gender and voting pattern for the people in the study? (A) 300 (B) 400 (C) 480 (D) 500 (E) 800 (a)