Answer: Python Puzzler #3074

The answer is C. The program prints:

[5, 9, 13, 17]

This answer was checked by running the program for real.

Why?

range(5, 19, 4) counts from 5 in steps of 4 and stops before 19.

The code again

print(list(range(5, 19, 4)))

Try it: change one number in the program and predict the new output before you run it.