Sherlock, the dog, takes his job of protecting his owners' home very seriously. he sits at the window all day and barks whenever he perceives a threat. the problem is, often he barks at innocuous things like the rustling of the wind or a car door shutting a block away. in terms of detecting threats, sherlock makes many due to a decision criterion.

If the choices to the scenario are the following:
-misses; liberal
-misses; conservative
-false alarms; liberal
-false alarms; conservative
Then, the most appropriate answer is the third one(false alarms; liberal). Dogs are known to have sensitive hearing and sharp intuition. They instinctively react even with just a single knock on the door. In other words, they tend to react right away without rational judgement since their mindset is ruled by instinct alone. As a result, they tend to get false alarms due to a liberal decision criterion.

The correct answer is "the protesters were attacked by chinese troops and many were killed or arrested."