Compare and Remove From Subarray

string[][] jaggedArray = {

new string[] { "John", "Peter", "Company","Peter"},

new string[] { "Clark", "Harry","John"},

new string[] {"John", "Peter"}

};

var test = jaggedArray[0];

var test2 = jaggedArray[0].Concat(jaggedArray[1]).Except(jaggedArray[0]).ToArray();

var test3 = jaggedArray[0].Concat(jaggedArray[1]).Concat(jaggedArray[2]).Except(jaggedArray[0]).Except(jaggedArray[1]).ToArray();