Chad invested massively in railways and highways over the past decade. They also funded many IT projects and telecom infrastructure. On the other hand, Bahrain invested less, and didn't do much to improve communication pathways and technologies between different villages. Given the paragraph above, please answer correctly the following question: Which country experiences less of a distance effect?
Ans: Chad

Dr. Bill studies 2 groups of patients, group S composed of individuals with siclke-cell anemia, and group N with normal blood and no health issues. Given the paragraph above, please answer correctly the following question: Which group didn't have people with a certain gene mutation?
Ans: group N

Fred was a good athlete in his youth, and so was Vic. Fred started eating junk food and other fatty foods in his 30's. His cholesterol is very high now. Vic became a vegan later,and he is in a very good physical shape. Given the paragraph above, please answer correctly the following question: Which friend had a smaller chance of developing heart disease?
Ans: Vic

Two friends went to the doctor because they weren't feeling well. As it turns out Danny had a condition called hypercalcaemia, while Greg had hypocalcaemia. Given the paragraph above, please answer correctly the following question: Which friend had an excessive intake of vitamin D?
Ans: Danny