The statement A is true as it relates to the actions taken against Nana Saheb. The reason R is also true and explains why A occurred, primarily due to the Doctrine of Lapse. Therefore, option (d) correctly identifies R as the reason for A. ;
Both assertion (A) and reason (R) are true, with (R) explaining why (A) occurred. The British stopped Nana Saheb's pension due to the Doctrine of Lapse not recognizing adopted heirs. Thus, the correct answer is (d), where R is the reason for A.
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