Arrange the following epigraphic and literary sources in chronological order based on the historical events or reigns they record, from the earliest to the latest: 1. The Mehrauli Iron Pillar Inscription of King Chandra (identified as Chandragupta II). 2. The Bilsad Stone Pillar Inscription of Kumaragupta I. 3. The Junagadh Rock Inscription of Skandagupta. 4. The Allahabad Pillar Inscription (Prashasti) of Samudragupta. Select the correct answer using the codes given below:

Options:

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

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