Chemical Thermodynamics: JEE Main 2022 Chemistry question

At 25$^\circ$C and 1 atm pressure, the enthalpies of combustion are as given below : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-baqh{text-align:center;vertical-align:top} Substance ${H_2}$ C (graphite) ${C_2}{H_6}(g)$ ${{{\Delta _c}{H^\Theta }} \over {kJ\,mo{l^{ - 1}}}}$ $- 286.0$ $- 394.0$ $- 1560.0$ The enthalpy of formation of ethane is