Arrange the following dynasties of Magadha in chronological order based on their contribution to the expansion of the standing army and centralized administration (from earliest to latest): 1. Nanda Dynasty (known for maintaining a massive standing army of 200,000 infantry and 3,000-6,000 elephants). 2. Haryanka Dynasty (initiated the standing army system under Bimbisara). 3. Maurya Dynasty (perfected the centralized bureaucratic structure and military boards). 4. Shishunaga Dynasty (annexed Avanti and consolidated military control over Central India). Select the correct answer using the codes given below:

Options:

• A: 2-4-1-3
• B: 2-1-4-3
• C: 4-2-1-3
• D: 1-2-4-3

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