Consider the following statements regarding Sher Shah Suri:
1. He occupied Delhi by defeating Mughal emperor Humayun twice, in the battle of Chausa and the battle of Kannauj.
2. He issued a standardized silver coin called ‘Rupiya’.
3. Akbar’s administrative system and taxation was largely based on the system established by Sher Shah.
4. Sher Shah died in a battle near Sasaram fighting against Akbar’s Army.
Which of the above statements are correct?
1. 1, 2 and 3
2. 2, 3 and 4
3. 1 and 2
4. All of the above