Consider the following statements about Sikh Gurus:
1. Banda Bahadur was appointed as the military leader of the Sikhs by Guru Tegh Bahudur.
2. Guru Arjun Dev Became the Sikh Guru after Guru Ram Das
3. Guru Arjun Dev gave to Sikhs their own script – Guru mukhi.
Which of these statements given above is/are correct?