In the following function to push data into a stack, the condition "if (!success)" tests _____.void insertData (STACK_NODE** pStackTop){   char charIn;   bool success;   for (int nodeCount = 0; nodeCount < 10; nodeCount++)   {      charIn = rand() % 26 + 'A';      success = push(pStackTop, charIn);      if (!success)      {         exit (100);      } // if   } // for} // insertData

_______________ are the ultimate key to protecting your network.

Fill in the blank(s) with the appropriate word(s).

Which of the following statements about pointer initialization is true?

A. Pointer constants can only point to constants. B. Pointer constants can only be initialized to null pointers. C. Pointer constants are automatically set to null by the compiler. D. The data variable must be declared before it can be used for pointer initialization.  E. To initialize a pointer to the address of a variable, the variables identifier is suffixed with the indirection operator (*).