pls help with explanations. ... btw this is C++

Consider the following program: void setup 0 int a 4, b 2, c 3; a foo (b, a, c) //Point 1 int foo (int x, int y, int z) f O a 25, b 2, C 3 O a 28, b 2, c 3 O a 4, b 2, C 3 int answer- bar (y, z) +x; return answer * 2; int bar (int m, int n) f return m * n; What are the values of a, b, and c, at Point 1