Concept:
Deportation (or expulsion) is an administrative or judicial act by a sovereign state. It involves the removal of a foreign national from the territory of that state and sending them back to their country of origin or a third country.
Step 1: Legal Grounds for Removal.
Deportation is typically triggered by a violation of the host country's domestic laws. While "loss of visa" (Option A) is a type of violation, it is a specific subset of the broader category. The legal standard for deportation is a violation of immigration laws or other serious criminal conduct.
$\text{Action: Deportation} \longleftarrow \text{Cause: Violation of Immigration Laws}$
Step 2: Difference from Extradition.
It is important to distinguish deportation from "extradition."
• Extradition: Removing a person to another country to face trial for a specific crime committed there.
• Deportation: Removing a person because their presence in the current country is illegal or undesirable.
Step 3: Procedural Requirements.
Deportation usually involves a formal order from the government (like the Foreigners Regional Registration Office in India). The individual is typically barred from re-entering the country for a specific number of years.
Final Answer: Option B