If a+b+c=0, then one of the solution of |\table a-x,c,b;c,b-x,a;b,a,c-x|=0 is [NDA II 2018]

x=\sqrt{ {3(a^{2}+b^{2}+c^{2})}/{2}}

x=\sqrt{ {2(a^{2}+b^{2}+c^{2})}/{3}}