If enthalpies of formation of \[{{C}_{2}}{{H}_{4}}(g),\,C{{O}_{2}}(g)\] and \[{{H}_{2}}O(l)\] at \[{{25}^{o}}C\] and \[1\,atm\] pressure be 52, ? 394 and \[-286\,kJ\,mo{{l}^{-1}}\] respectively, the enthalpy of combustion of \[{{C}_{2}}{{H}_{4}}(g)\] will be [CBSE PMT 1995; AIIMS 1998; Pb. PMT 1999]

• A.                 \[+1412\,kJ\,mo{{l}^{-1}}\]         
• B.                 \[-1412\,kJ\,mo{{l}^{-1}}\]
• C.                 \[+141.2\,kJ\,mo{{l}^{-1}}\]       
• D.                 \[-141.2\,kJ\,mo{{l}^{-1}}\]