Consider the following statements regarding different schools of art:
1. In Gandhara school of art, Buddhism is the central theme and Buddha looks like Greek God.
2. In the Mathura school of art, the material used was red sandstone.
3. In the Mathura school of art, Hinduism, Buddhism, Jainism, and common people are also represented in this school of art.
Which among the following above given statements are correct?
1. Only 1 and 3
2. Only 1 and 2
3. Only 3
4. All of the above