Problem: Margaret is a mother currently in the middle adulthood stage of her life. Margaret's daughter, Vanessa, hasn't reached middle adulthood yet, and is still a teenager. Both of them enjoy reading beauty and fashion magazines so they can find age-appropriate tips on how to improve their look. Who is less likely to begin developing wrinkles?

A: Vanessa

Problem: A scientist studied the effects of alcoholic beverages on the human body during severe weather exposure. He decided to experiment on himself. He stood in -30 degrees weather for 2 hours and called it experiment A. He then repeated the experiment, the only difference being that he consumed a pint of hard liquor before and during those two hours, and that was called experiment B. When did the scientist's blood vessels dilate less, during experiment A, or during B?

A: experiment A

Problem: Mike was visiting the African Savannah. One animal that interested him most was the African Buffalo. He noticed that the buffaloes would usually live in a large herd, often exceeding few hundreds. He noted that as case A. But sometimes the buffaloes would live in a small herd. He noted that as case B. Interestingly, there are incidents when an aggressive male buffalo would live by itself. He noted that as case C. In case B, would the group get less or more benefit as a whole than in case A?

A: more

Problem: Two groups of students studied Biology. Group One studied mammals, while Group Two studied birds. They focused on the respiratory system. Which group of students learned less about human lungs?

A:
Two