Research Function Return Values

Enter the code, note the ouput and answer the following questions: Complete the sentence When the user enters the value of "a,"  for each of the following:

1. Why does isalum() return the value 2?

2. Why does isxdigit() return the value 128?

3. Why does islower() return the value 2?

4. Why does isupper() return the value 0?

5. Why does tolower() return the value 97?

6. Why does toupper() return the value 65?

7. Why does isspace() return the value 0?

8.Why does iscntrl() return the value 0?

9.Why does ispunct() return the value 0?

10. Why does isprint() return the value 2?

11. Why does isgraph() return the value 2?