Option 1: 1823

Option 2: 1825

Option 3: 1848

Option 4: 1861

The correct answer is option 2: 1825. This is the year passenger trains were introduced in England.

Option 1, 1823, is not the correct answer. Option 2, 1825, is the correct answer.

Option 3, 1848, is not the correct answer. Option 2, 1825, is the correct answer.

Option 4, 1861, is not the correct answer. Option 2, 1825, is the correct answer.

In summary, passenger trains were introduced in England in the year 1825, as indicated by option 2.