Question: Consider the following C functionvoid swap ( int a , int b ) { int temp;temp = a;a = b;b = temp;In order to exchange

Consider the following C functionvoid swap (int a, int b){int temp;temp = a;a = b;b = temp;In order to exchange the values of two variables x and y.O a. Call swap (x, y)Ob. Call swap (&x, &y)Oc. swap(x,y) cannot be used as it does not return any valueOd. swap(x,y) cannot be used as the parameters are passed by value

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