Problem: Keith is a doctor in a local hospital. Today, he is seeing three patients, patient A, patient B, and patient C. Patient A has been suffering from hepatitis B all his life; patient B is recovering from hepatitis B on his own; and patient C doesn't have hepatitis B. Keith would now compare the symptoms of these patients. Would patient B more likely or less likely risk a damaged liver than patient A?

A: less likely

Problem: Environmental scientists are trying to find a solution to reducing the harmful effects of chemicals on the environment. To that end, they developed a transgenic crop with the help of Bt toxin - they referred to it as case A. To test the effectiveness of this new crop they also studied Bt toxin spray - they referred to it as case B. They need to figure out which case is safer for the environment. In which case the Bt toxin would bind to the insect's gut wall, case A or case B?

A: case A

Problem: Two counties paid a study about acid rain. They found out Hill county had experienced that, while New county hadn't. Which county experienced more precipitation destructive to freshwater habitats?

A: Hill

Problem: Two nearby villages are experiencing earthquakes. Bow village gets a lot of earthquakes annually, while Arrow village gets only a few. Which village experiences fewer rocks breaking?

A:
Arrow