Q: Choose the correct answer with the explanation reason of your choice 1. Which of the following is the default return value of functions in C++? a) int b) char c) float d) void 2. If an argument...

Extracted text: Q: Choose the correct answer with the explanation reason of your choice 1. Which of the following is the default return value of functions in C++? a) int b) char c) float d) void 2. If an argument from the parameter list of a function is defined constant then a) It can be modified inside the function b) It cannot be modified inside the function c) Error occurs d) Segmentation fault 3. From which function the execution of a C++ program starts? a) start() function b) main() function c) new() function d) end() function