Problem: David works as a nutritionist with the public health department. He categorized the certain sections of his county's population. First he categorized boys and girls between nine and thirteen years as cat A. Then he put girls between fourteen and eighteen years in cat B, and boys of the same age in cat C. Lastly, he categorized pregnant women as cat D. He needs to recommend healthy diet, especially iron intake, for each group. Given the paragraph above, please answer correctly the following question: For which group David would recommend more iron rich foods, cat B or cat C?

A: cat B

Problem: Doctors studied two groups of individuals: group O with people over 65, and group S with people under 65 years old. They published the results in a magazine. Given the paragraph above, please answer correctly the following question: Which group had fewer people that have retired from work?

A: group S

Problem: Two ancient continents both had a great bird population on them. At some point in time, the continent of Mu experienced a great drought that lasted for several years. The other continent, Lemuria, was unaffected by the drought. Given the paragraph above, please answer correctly the following question: Which continent had more birds with bigger beaks that survived?

A: Lemuria

Problem: Dan harvested lots of fruit and decided to candy some of them to preserve them. He left some fruit fresh for the family to enjoy. He candied apples, pears, plums, and quince. He didn't candy oranges, blueberries, apricots and peaches. Given the paragraph above, please answer correctly the following question: Which fruit retained their quality longer, apples or oranges?

A:
apples