For one mole of an ideal gas, which of these statements must be true? (i) U and H each depends only — Thermodynamics and Thermochemistry Chemistry Question

Question

For one mole of an ideal gas, which of these statements must be true? (i) U and H each depends only on temperature (ii) Compressibility factor z is not equal to 1 (iii) C - C = R (iv) du = C dT for any process p,m v,m v p 𝛾 (A) (i), (iii) and (iv) (B) (i) and (iii) (C) (iii) and (iv) (D) (ii), (iii) and (iv)