A physical parameter a can be determined by measuring the parameters b, c, d and e using the relation a = \[{{b}^{\alpha }}{{c}^{\beta }}/{{d}^{\gamma }}{{e}^{\delta }}\]. If the maximum errors in the measurement of b, c, d and e are \[{{b}_{1}}\]%, \[{{c}_{1}}\]%, \[{{d}_{1}}\]% and \[{{e}_{1}}\]%, then the maximum error in the value of a determined by the experiment is

• A.          (\[{{b}_{1}}\,+\,{{c}_{1}}\,+\,{{d}_{1}}\,+\,{{e}_{1}}\])%                   
• B.          (\[{{b}_{1\,}}\,+\,{{c}_{1}}\,-\,{{d}_{1}}\,-\,{{e}_{1}}\])%         
• C.          (\[\alpha {{b}_{1}}\,+\,\beta {{c}_{1}}\,-\,\gamma {{d}_{1}}\,-\delta {{e}_{1}}\])%                  
• D.            (\[\alpha {{b}_{1}}+\,\beta {{c}_{1}}\,+\,\gamma {{d}_{1}}\,+\,\delta {{e}_{1}}\])%