Question 21 2 pts Study the following code segment and identify the line that will cause a syntax error void Secret (int& x, double y = 12.34, char z); //line 1 int main() //Line 2 { int a 23; //Line 3 char ch 'M'; //line 4 Secret (a, 34.65, 'Q'); //Line 5 return 0; //Line 6 //Line 7 void Secret (int& x, double y, char z) { x = 2 * x; cout