Consider the following statements:
In the case of a superconductor
1. the magnetic flux density is zero
2. the relative permeability is high
3. diamagnetism is large
4. transition temperature varies with isotopic mass
Of these statements

A. 1 and 2 are correct

B. 2, 3 and 4 are correct

C. 1, 3 and 4 are correct

D. 2 and 4 are correct

Answer: Option C