1.

The rationalizing factor of\[\sqrt[5]{{{a}^{2}}{{b}^{3}}{{c}^{4}}}\]is ______.

A. \[\sqrt[5]{{{a}^{3}}{{b}^{2}}c}\]                  
B.  \[\sqrt[4]{{{a}^{3}}{{b}^{2}}c}\]     
C.  \[\sqrt[3]{{{a}^{3}}{{b}^{2}}c}\]     
D.        \[\sqrt{{{a}^{3}}{{b}^{2}}c}\]          
Answer» B.  \[\sqrt[4]{{{a}^{3}}{{b}^{2}}c}\]     


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