A travel article researcher randomly sampled 250 adult residents of Illinois and asked each resident if he/she planned to vacation outside of Illinois this coming summer. Fifty-six of these adults responded that they plan to vacation outside of Illinois. What is the 95% confidence interval for the population proportion of adult residents of Illinois who plan to vacation outside of Illinois this coming summer?A. (0.178, 0.318)B. (0.246, 0.250)C. (0.172, 0.276)D. (0.142, 0.354)