Concept:
Jus Soli is a Latin legal principle that means ``Right of the Soil.'' Under this principle, citizenship is determined by the place of birth, irrespective of the nationality of the parents (subject to the country's laws).
• Jus Soli = Citizenship by birth.
• Followed fully or partially by several countries.
• Opposite principle is Jus Sanguinis (Right of Blood).
Step 1: Understand the Latin words.
The term can be divided as:
\[
\text{Jus} = \text{Right}
\]
\[
\text{Soli} = \text{Soil (Land)}
\]
Therefore,
\[
\text{Jus Soli} = \text{Right of Soil}
\]
Step 2: Understand its legal meaning.
A person acquires citizenship because:
He or she is born within the territory of a country.
Step 3: Differentiate from similar terms.
• Jus Soli -- Right of Soil (birthplace)
• Jus Sanguinis -- Right of Blood (citizenship through parents)
• Implied jurisdiction -- unrelated
• Opinion of law -- incorrect
Step 4: Final conclusion.
Hence, the correct answer is:
\[
\boxed{\text{Right of soil}}
\]