Vapor pressure of water at various temperature is given in the table. An air and water vapor mixture at 100 kPa with a relative humidity of 20% has a dry-bulb temperature of 310 K. Assume latent heat of vaporization for water is 44 kJ mol⁻¹ and specific heat capacity of the air and water vapor mixture is 0.035 kJ mol⁻¹K⁻¹. Which one of the following is the closest to its wet-bulb temperature (in K)?