The author's argument rests on negativity bias being an evolutionary leftover from our hunter-gatherer past that still shapes how modern humans react to news. Weakening this argument means showing that link between the past trait and present-day behavior does not actually hold.
Only option B removes the evolutionary basis the author's argument depends on, which is what makes it the weakening statement.
Therefore, the correct answer is Option B.
The passage describes modern media as chasing sensational, shocking stories because "boring" everyday life doesn't sell ads, and it calls this trend "an assault on the mundane." Whatever the author agrees with has to combine "exciting/sensational" content with content that is far removed from ordinary daily life.
Only option B captures both halves of the passage's point: the news is exciting, and it is far removed from how most people actually live.
Therefore, the correct answer is Option B.
This question anchors specifically on the "nice neighbours with boring lives" remark plus the argument about modern media's nature. The author uses that remark to contrast ordinary, unremarkable life with the sensational content media actually delivers, so the answer needs to follow directly from that specific contrast.
Option D is the most direct consequence of pairing the "boring lives" remark with the media argument, which is exactly what the question asks for.
Therefore, the correct answer is Option D.
Negativity bias, as the passage defines it, means people pay more attention to bad news than good news. Whatever the correct option is, it has to pit a negative story against a positive one and predict that the negative one gets noticed more.
Only option C correctly pairs a negative story with a positive one and predicts the negative one wins out, matching the definition of negativity bias.
Therefore, the correct answer is Option C.
Availability bias means judging something as common just because examples of it come easily to mind, usually from repeated exposure. Countering it means deliberately widening what a person is exposed to, not narrowing it.
Only option D increases the diversity of information a person is exposed to, which is what actually counters availability bias.
Therefore, the correct answer is Option D.
The author argues that being bombarded with horrific stories skews our view of the world. For that conclusion to follow logically, there must be an unstated link connecting exposure to these stories with how we actually see the world. The correct option is the assumption that, if false, would break that link.
Only option A supplies the missing link between exposure and perception that the author's conclusion actually depends on.
Therefore, the correct answer is Option A.