Which one of the following ancient Indian records is the earliest royal order to preserve food grains to be utilised during the crises in the country?

1. The question asks for the earliest known ancient Indian record containing a royal order to preserve food grains for use during crises like famine. 2. The Sohagaura Copper-plate inscription, found in Uttar Pradesh and written in Prakrit using Brahmi script, is generally dated to the Mauryan period (possibly 3rd century BCE). It mentions the establishment of two granaries (Kosthagara) to combat drought or famine, making it a very early example of state-managed famine relief. 3. The Rummindei pillar-edict of Asoka commemorates Asoka's visit to Lumbini and reduces taxes, not about grain storage. The Prayaga-Prasasti (Allahabad Pillar Inscription) details Samudragupta's conquests (Gupta period). The Mehrauli Pillar inscription praises King Chandra (likely Chandragupta II, Gupta period). 4. Therefore, the Sohagaura inscription is the earliest among the options relating to food grain preservation.