It's C++. Please help.

The program could be written without break statements, but the loops' condition expressions would be more complex would require additional code, perhaps being harder to understand. Given the following while loop, what is the value assigned to variable z for the given values of variables a, b and c? mul t = 0: while (a c) { break: } a = a + 1: } z = a: 1) a = 1, b = 1, c = 0 2) a = 4, b = 5, c = 20