The answer is C. The program prints:
[1, 4, 7, 10, 13]
This answer was checked by running the program for real.
Why?
range(1, 16, 3) counts from 1 in steps of 3 and stops before 16.
The code again
print(list(range(1, 16, 3)))
Try it: change one number in the program and predict the new output before you run it.