Step 1: Information retrieval.
The Kisan Credit Card is valid for a duration of 3–5 years, as per the passage.
Step 2: Exclusion of erroneous choices.
- Options ranging from 9–12 years, 13–15 years, and 20–25 years are invalid as they exceed the stated period and are not part of the scheme's specifications.
Step 3: Determination.
Consequently, the applicable validity period is 3–5 years.
Final Answer: \[\boxed{\text{Kisan Credit Card validity = 3–5 years.}}\]