Isabel is the manager of a company which produces two types of chocolate bars, Bar A and Bar B. Isabel wants to check which of the two bars children like better. She decides to take a random sample of 50 children and have each of them eat both kinds of candy bars. She records the amount of time it takes each child to eat Bar A and how much time it took the same child to eat Bar B. She thinks Bar A will taste better than Bar B and so the children will eat it faster. Which hypothesis test would she use? A. One mean sigma unknown B. One mean sigma known C. The mean differences using dependent samples(paired data) D. The difference of means using independent samples. E. ANOVA