Which of the following statements are correct with respect to PTR/ Pupil Teacher ratio:
1. The PTR norms for the country are 30:1 for primary level education, 35 : 1 for upper primary level education and 30 : 1 for secondary level education.
2. The PTR compliance is aided by Sarva Siksha Abhiyan program for elementary and secondary education.
3. Tripura, Sikkim and Nagaland have the worst PTR among Indian states.
4. Kerala is the most compliant among the large states.
Select the correct option:

A. Only 1, 2 & 3

B. Only 2, 3 & 4

C. Only 1 & 4

D. 1, 2, 3 & 4

Answer: Option C