Mastering C++: A Comprehensive Quiz Based on 'Thinking in C++'

How can storage for a C++ object be allocated?

1. Before the program begins

2. On the stack during execution

3. From the heap

4. All of the above

The correct answer is: All of the above

C++ objects can be allocated storage in multiple ways - either before the program begins, on the stack during execution, or from the heap. Each option has its own purpose and advantages, so using all three is a common practice. Choosing one specific option may depend on factors such as the size of the object or its lifetime. Therefore, option D, which states that all three options are correct, is the best answer for this question. Option A could be incorrect because allocating storage before the program begins may not always be necessary or practical, while option B could be incorrect because not all objects can be stored on the stack during execution. Option C could be incorrect because while the heap is a common choice for dynamic memory allocation, it may not always be the best option.