Step 1: Understanding the Question:
The question asks for the definition of the legal term "jus soli" (also written as ius soli) in relation to the acquisition of citizenship or nationality.
Step 2: Key Legal Principles and Approach:
In international law and municipal constitutional law, there are two primary legal principles used to determine birthright citizenship: jus soli and jus sanguinis.
Step 3: Detailed Explanation:
• Jus Soli Definition: The Latin term *jus soli* translates literally to "right of the soil."
• Under this rule, a person's nationality or citizenship is determined by their place of birth.
• Any child born within the territorial boundaries of a state implementing this rule is automatically granted citizenship of that state, regardless of the citizenship, nationality, or status of their parents.
• This is commonly referred to as "birthright citizenship" and is practiced by nations such as the United States, Canada, and many countries in the Americas.
• Jus Sanguinis Contrast: In contrast, *jus sanguinis* translates to "right of blood."
• Under *jus sanguinis*, a child's citizenship is determined by the nationality of their parents, regardless of where the child was physically born.
• Many European, Asian, and African countries primarily follow *jus sanguinis* rather than *jus soli*.
• Looking at the options, Option (D) correctly defines *jus soli* as the rule where a child's citizenship is determined by his or her place of birth.
• Therefore, Option (D) is the correct answer.
Step 4: Final Answer:
The *jus soli* rule determines a child's citizenship based on their physical place of birth, making Option (D) the correct answer.