Concept:
A Coroner is a public official (often an administrative or judicial officer) whose primary duty is to investigate deaths that occur under unusual or unnatural circumstances. This investigative process is known as a "Coroner's Inquest."
Step 1: Determining the Jurisdiction.
The coroner’s power is triggered whenever any person (not just foreigners, convicts, or minors) dies in a way that suggests the cause of death was not natural.
$\text{Triggers: Sudden / Violent / Unexplained / Suspicious}$
Step 2: The Objective of the Inquest.
The purpose of the coroner's investigation is to determine:
• The identity of the deceased.
• When and where the death occurred.
• How the death occurred (medical cause and circumstances).
Step 3: Analyzing the options.
Options A, C, and D are "subsets" of the truth. While a coroner would indeed investigate the death of a foreigner or a convict, their authority extends to any person regardless of their status, provided the death is suspicious. Thus, Option (B) is the most complete and accurate legal answer.
Final Answer: Option B