Explanation:

- Option 1: Judicial Review

- The Subhash Sharma v. Union of India (1991) case emphasizes the basic feature of Judicial Review.

- Judicial Review is the power of the judiciary to examine the constitutionality of legislative acts.

- Option 2: Rule of Law

- This refers to the principle that law should govern a nation, as opposed to arbitrary decisions by individual government officials.

- Option 3: Free and fair elections

- This ensures that elections are conducted impartially and without bias, reflecting true democratic principles.

- Option 4: Fundamental Rights

- These are basic human rights guaranteed by the Constitution for the individual's development.