Step 1: Understanding the constitutional requirements.
According to the Constitution of India, the minimum age required for becoming the Prime Minister is 25 years.
Step 2: Analyzing the options.
- (A) 38 years: This is incorrect, as the required age is not 38 years.
- (B) 40 years: This is also incorrect. The age requirement is 25 years, not 40 years.
- (C) 45 years: This is incorrect. The correct age is 25 years.
- (D) 25 years: This is the correct answer, as the Constitution states the minimum age for the Prime Minister is 25 years.
Step 3: Conclusion.
The correct answer is (D) 25 years.