The correct answer is: a) Question British authority
The Revolt of 1857, also known as the Indian Rebellion of 1857, was a major uprising in India against the rule of the British East India Company. The revolt was led by a number of different groups, including the Mughal emperor Bahadur Shah II, the Marathas, and the Sikhs. The revolt was ultimately unsuccessful, but it had a significant impact on the British Raj.
The Revolt of 1857 may have inspired Mizo leaders to question British authority for a number of reasons. First, the revolt showed that it was possible to successfully resist British rule. Second, the revolt demonstrated the weaknesses of the British Raj. Third, the revolt raised the hopes of Mizo leaders that they could achieve independence from British rule.
The other options are not as likely to have been inspired by the Revolt of 1857. Option b) is unlikely because the Mizo people were not directly involved in the revolt. Option c) is unlikely because the Mizo people had already adopted a number of different tactics for resistance, including guerrilla warfare and ambushes. Option d) is unlikely because the Mizo people did not have the resources to seek external support.