1. Trace the following C program and find and describe the output. #include int main(void) { int a[3][3] = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9} }; int b[3][3] = { {10, 11, 12}, {13, 14, 15}, {16, 17, 18} }; int c[3][3] = { {0, 0, 0}, {0, 0, 0}, {0, 0, 0} }; /*result array initialized to zero */. int i, j, k; printf(" MATRIX a "); for (i=0; i