A case-control (or retrospective) study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured or killed in a crash. Results are given in the accompanying table. Using a 0.01 signicance level, test the claim that injuries are independent of helmet color. Color of Helmet E1 Black White Yellow Red Blue Controls (not injured) 491 350 27 153 93 Cases (injured or 209 106 7 65 45 killed) Click here to view the chi-square distribution table. Identify the null and alternative hypotheses. Choose the correct answer below. 0 A. H0: Whether a crash occurs and helmet color are independent H1: Whether a crash occurs and helmet color are dependent O B. H0: Injuries and helmet color are independent H1: Injuries and helmet color are dependent O c. H0: Injuries and helmet color are dependent H1: Injuries and helmet color are independent O D. H0: Whether a crash occurs and helmet color are dependent H1: Whether a crash occurs and helmet color are independent