Identify the correct statements : (A) The molality of 2.5 g of ethanoic acid (Molar mass : 60 g mol -1 ) in 75 g of benzene solution is 0.556 m. (B) The molarity of a solution containing 5 g of NaOH (molar mass : 40 g mol -1 ) in 450 mL of solution is 0.278 M at 298 K. (C) Aquatic species are more comfortable in cold water. (D) The solubility of gas increases with decrease in pressure. (E) For a binary mixture of A and B, the number of moles of A and B are n A and n B respectively. The mole fraction of B will be x B = n A n A +n B . Choose the correct answer from the options given below :

1. A. A, B and C only
2. B. A, D and E only
3. C. A and B only
4. D. A and C only

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