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

Dynamic memory allocation is the process of managing memory during the execution of a program. It allows the programmer to allocate and deallocate memory at runtime. This means that the program is able to allocate memory as needed and release it when it is no longer needed. The responsibility of the programmer in dynamic memory allocation is to determine when to release the memory. This is essential to prevent memory leaks and keep the program running efficiently. Option A is incorrect because the programmer does not need to define the object type before runtime in dynamic memory allocation. Option B is incorrect because pointer arithmetic is not necessary for dynamic memory allocation. Option D is incorrect because stack memory is limited and may not be sufficient for large or complex programs. Therefore, the programmer's responsibility in dynamic memory allocation is to determine when to release the memory.