With a C program (memory map), data in is initialized by the kernel to arithmetic 0 or null pointers before the program starts executing. The C declaration (for example, "long sum[1000];") appearing outside any function causes this variable to be stored in .

The answer is "  Uninitialized data segment ".

Explanation:

It (memory map) field whenever a C program is locked to run, the kernels must allocate information into 0 or null pointer in this section until the process runs. This variable, that is outside of any function, has been stored in uninitialized data item by the C statement (like, "long amount[1000];").  

If we did not declare the data segment, it also called bss, in which all block which begins with the symbol and is called for an old assembly language operator.