I'd say the second one, 9.41 at 78.3 ºC (the temperatures I used were 60.2 ºC and 52.8 ºC), but I hope not since the value I got is a bit different. Anyway, which one is it ?
EDIT: I have a physical chemistry book and it says that 43.5 kJ/mol is the standard enthalpy of heat at the transition temperature. I'm not sure what this transition temperature means but could they be referring to the temperature at which ethanol boils (78.35 ºC) ?