Q. Consider the following statements: The definition of
1. temperature is due to zeroth law of thermodynamics
2. entropy is due to first law of thermodynamics
3. internal energy is due to second law of thermodynamics
4. reversibility is due to Kelvin-Planck's ststement of these statements

• (A) 1,2 & 3 are correct
• (B) 1,3 & 4 are correct
• (C) 1 alone is correct
• (D) 2 alone is correct