Which of the following can be considered as the most useful and outstanding reforms made by Lord Curzon, especially in respect of the people living in the undivided province of Punjab?

Lord Curzon's agricultural reforms, including the Punjab Land Alienation Act of 1900, were most significant for Punjab's rural population. This Act protected farmers from losing their land to moneylenders, addressing a major crisis. Educational, Police, and Industrial reforms were important but didn't impact Punjab's people as directly as agricultural measures.