The answer is A. The program prints:
8 3

Why?
// divides and throws away the remainder: each friend gets 8 sweets. % gives the remainder: 3 sweets left over.
Trace table
A trace table follows the program step by step. Here’s this one:
| sum | answer |
|---|---|
| 35 // 4 | 8 |
| 35 % 4 | 3 |
The code again
sweets = 35
friends = 4
print(sweets // friends, sweets % friends)
Try it: change one number in the program and predict the new output before you run it.