What does function five do?
```
int five
(char inArr[])
{
int ans;
if (inArr[0] == '\0')
ans = 0;
else if (isdigit (inArr[0]))
ans = 1 + five (++str);
else
ans = five (++str);
return ans;
}
```
a. Counts the number of digits in inArr.
b. Returns 1 if the first character is a digit, 5 otherwise.
c. Counts the number of null characters in inArr.
d. Counts the number of characters in inArr.
e. None of the above
a. Counts the number of digits in inArr.
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