Consider the following judicial reforms during the British period:

1. Lord Wellesley introduced the concept of separation of powers by dividing revenue and judicial functions.

2. William Bentinck abolished the Provincial Courts of Appeal and Circuit Courts.

3. Lord Macaulay drafted the Indian Penal Code (IPC) in 1837, which was later enacted under Lord Canning.

4. Lord Lytton actively supported the Ilbert Bill in 1883.

How many of the above statements is/are correct?