The answer is D. The program prints:
5 3

Why?
// divides and throws away the remainder: each friend gets 5 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 |
|---|---|
| 38 // 7 | 5 |
| 38 % 7 | 3 |
The code again
sweets = 38
friends = 7
print(sweets // friends, sweets % friends)
Try it: change one number in the program and predict the new output before you run it.