The question asks what can be reasonably inferred from the extract about Watson's history with Holmes.
Only option B is backed by a specific line in the passage, since the phrase about the chamber being formerly in part his own directly places Watson as a former resident of that room.
The correct answer is B) Earlier, Watson used to live with Holmes.
The question asks what Father Brown's method for solving cases actually depends on, based on how the passage describes him.
The passage isolates Father Brown's method as his own act of imagining and feeling like the criminal, which is exactly option A.
The correct answer is A) His own sympathetic and empathic thought process about criminals.
This question asks which quality, among the four listed, is not actually required by any of the three detectives described in the passage.
Sensitivity, critical thinking, and patience are each tied to one of the three detectives in the passage, but a forgiving nature is never mentioned or implied for any of them.
The correct answer is A) Forgiving nature.
This question asks how Poirot works with the different narratives people tell him, completing the sentence about the art he uses on the narratives he has been told.
The passage's own description of Poirot spotting where the pieces of the jig-saws don't fit together matches only the phrase about detecting and analyzing missing links.
The correct answer is D) Detecting and analyzing the missing links in.
Incorrigible describes a person or habit that cannot be reformed, corrected, or made to change for the better, even after repeated attempts. The question asks for the word that means the opposite of this.
Since incorrigible means resistant to being corrected, its true opposite is a word describing someone open to change and remorse, which is repentant.
The correct answer is C) Repentant.