The term 'dikus' refers to:-

The correct option is Migrant traders and Money lenders.

Step-by-step explanation:

1. The term dikus is a historical term used by tribal groups (Adivasis) in India, particularly during the colonial period in regions like the Chhotanagpur plateau.
2. In the local tribal languages, the word diku literally translates to "outsiders" or "foreigners". It was used to refer to people who did not belong to the tribal community.
3. Tribal communities relied heavily on forest resources and self-sustained agriculture. However, during British rule, outsiders began entering tribal areas to buy forest produce, sell manufactured goods at high prices, and offer cash loans.
4. These outsiders were primarily migrant traders and money lenders. When the tribals could not pay back the loans, the money lenders seized their land, leading the tribals to view them as the cause of their misery, debt, and loss of livelihood.
5. Therefore, the term dikus specifically refers to these migrant traders and money lenders who exploited the tribal population.