Consider the following statements regarding Ajatashatru's military campaign against the Vrijji confederacy (Vaishali): 1. Ajatashatru sent his minister Vassakara to sow seeds of dissension among the Lichchhavis. 2. The war lasted for nearly 16 years before Magadha could completely subjugate Vaishali. 3. Ajatashatru constructed a fort at Patali (Pataligrama) to serve as a base for operations against Vaishali. Which of the statements given above is/are correct?

Options:

• A: 1 and 2 only
• B: 1, 2 and 3
• C: 2 and 3 only
• D: 1 and 3 only

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