(A) The Constitution protects the interests of the citizens by restraining the government from taking arbitrary decisions.

(R) The Constitution regulates the position and powers of the three organs of the government— the legislative, the executive and the judiciary.

1. (A) is true but (R) is false.
2. (A) is false, but (R) is true.
3. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
4. Both (A) and (R) are false.

Both (A) and (R) are true, but (R) is not the correct explanation of (A).

Explanation — The Constitution safeguards citizens by preventing arbitrary government actions through fundamental rights, judicial review, and other safeguards, making A true. While it also sets out the powers and functions of the Legislature, Executive, and Judiciary (making R true), this alone does not fully explain how it protects citizens, hence R is not the correct explanation of A. For that, one needs to consider additional mechanisms like fundamental rights and checks and balances.