Consider the two countries below with the following population distributions: Country A Country B Age Group Percent of Population Age Group Percent of Population 0-10 5 0-10 24 11-20 4 11-20 21 21-30 8 21-30 21 31-40 17 31-40 20 41-50 24 41-50 10 51-60 28 51-60 2 >=61 14 >=61 2 If a study were done comparing fertility (births per woman) in these two countries, would it be better to do it with or without adjustment? Group of answer choices Without adjustment With adjustment