Problem: David is a doctor who works for the public health department. After analyzing health data for his city, he found twenty percent of the population have myopia. He categorized them as group A. Another eighty percent didn't have myopia. He put them in group B. He now needs to devise a plan on how to tackle myopia in his city. Which group would more likely engage in visually intensive works, group A or group B?

A: group A

Problem: Monica and Jill are two friends. They study and party together most of the time. One day Monica shared a needle with a drug addict at a party. She later found out that she'd been infected with HIV. Jill was scared and helped her as much as she could. Which friend doesn't have a virus that is passed from mother to fetus?

A: Jill

Problem: Diana is studying astronomy and in her spare time likes to stargaze. She has never been outside of her large city however. One weekend she got to go on a camping trip with her parents. When they arrived at the campsite, which is very far from the lights of the city she noticed the number of stars she could see in the sky greatly increased. Which area are stars more visible.

A: campsite

Problem: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen. Which friend didn't have a field with brighter flowers to attract fertilization?

A:
Jill