Q. Consider the following pairs linking nineteenth-century military uprisings with their primary institutional causes:

1. Barrackpore Mutiny (1824) - Refusal to cross the sea during the First Anglo-Burmese War due to caste pollution fears
2. Vellore Mutiny (1806) - Prohibitions on religious forehead marks, beards, and traditional turbans
3. Afghanistan Mutiny (1839–42) - Outrage over losing caste status while serving beyond the Indus River frontier
4. 1857 Cantonment Mutinies - Loss of Batta allowances for overseas deployments in European campaigns

Select the correct option from the codes given below:
Answer: Only three pairs
Notes: Pairs 1, 2, and 3 are correctly matched. The 1824 Barrackpore Mutiny involved refusal to cross the sea due to caste rules. The 1806 Vellore Mutiny was triggered by dress regulations banning religious marks and beards. The Afghanistan Mutiny involved outrage over caste status loss beyond the Indus River. Pair 4 is incorrect as the 1857 mutinies were ignited by greased rifle cartridges, not Batta allowance losses.