If in a nuclear fusion process the masses of the fusing nuclei be \[{{m}_{1}}\] and \[{{m}_{2}}\] and the mass of the resultant nucleus be \[{{m}_{3}}\], then [CPMT 1982; CBSE PMT 2004]

• A.            \[{{m}_{3}}={{m}_{1}}+{{m}_{2}}\]                                
• B.            \[{{m}_{3}}=\ |{{m}_{1}}+{{m}_{2}}|\]
• C.            \[{{m}_{3}}<({{m}_{1}}+{{m}_{2}})\]                             
• D.            \[{{m}_{3}}>({{m}_{1}}+{{m}_{2}})\]