please help me with this question

Catherine Cho, Marketing Research Analyst, is evaluating consumer acceptance of alternative toothpaste packages. She wonders whether acceptance is influenced by children in the household. Her staff prepared the following contingency table from a random sample of 100 households. Children in Household Pre-teenagers teenagers none Preferred Package Pump 30 20 10 Tube 10 10 20 Using a=0.05, the appropriate decision is O retain the null hypothesis and conclude the two variables are independent. O reject the null hypothesis and conclude the two variables are independent. O retain the null hypothesis and conclude the two variables are not independent. reject the null hypothesis and conclude the two variables are not independent