Consider the following statements regarding ductility of bitumen:
1) Ductility is the property which does not permit bitumen to undergo large deformation without breaking.
2) Bitumen with high ductility are generally adhesive but do not have good cementing properties.
3) Ductility must be ascertained at two different temperatures in order to pronounce on the suitability of the material.
Which of the above statements is/are correct?