The answer is C. The program prints:
11 0

Why?
// divides and throws away the remainder: each friend gets 11 sweets. % gives the remainder: 0 sweets left over.
Trace table
A trace table follows the program step by step. Here’s this one:
| sum | answer |
|---|---|
| 22 // 2 | 11 |
| 22 % 2 | 0 |
The code again
sweets = 22
friends = 2
print(sweets // friends, sweets % friends)
Try it: change one number in the program and predict the new output before you run it.