Detailed Instructions: You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).
Q: Paragraph: Breast cancer is rare in teens. It becomes more common as women get older.
 Question: Eileen studied two identically sized populations of women, one in Springfield where the women were in their 50s and one in Mayfield where the women were in their 30s. The population with a lower incidence of breast cancer was 
 Choices: A)Springfield group 
B)Mayfield group.
A:
Mayfield group.