Identify the precise civic obligation that was integrated into the Indian Constitution significantly later than the original 1976 framework, specifically via the 86th Amendment Act of 2002:
1. The obligation to uphold and protect the overarching sovereignty, unity, and territorial integrity of the nation.
2. The obligation placed upon guardians to secure access to educational opportunities for dependents aged six to fourteen.
3. The obligation to diligently safeguard public infrastructure and permanently abjure all forms of violence.
4. The obligation to remit financial taxes to the state faithfully and in accordance with established statutory law.