Which detail from the text best supports the answer to Part A? Group of answer choices

“In a series of studies, the couple demonstrated that an office window that overlooks a natural scene helps people relax, thus fighting off one of the primary threats to competence, mental fatigue.” (Paragraph 24)

“But wouldn't a debilitating disease like cancer be so overwhelming that it would wipe out the three conditions the Kaplans feel are so important?” (Paragraph 29)

“But the Kaplans were intrigued by one study that came out about that time suggesting that what people really liked in their lives was a ‘medium level of complexity.’" (Paragraph 7)

“To make your way down the road to happiness you need to feel competent and believe that you can make a difference. You also need to understand what the heck is going on around you and have the opportunity to choose your own options.” (Paragraph 2)