What is accomplished by the call to sprintf in the code fragment below?

```
char ans[20];
int num = 40;
sprintf(ans, "%d to %d", num, num + 10);
```
a. Nothing, the function name is misspelled.
b. It returns as its value the string "40 to 50".
c. It displays first the value of ans and then the string "40 to 50" (without the quote marks).
d. It aborts because the value of ans is garbage.
e. None of the above.

B