Answer: Python Puzzler #3051

The answer is D. The program prints:

[1, 5, 9, 13]

This answer was checked by running the program for real.

Why?

range(1, 15, 4) counts from 1 in steps of 4 and stops before 15.

The code again

print(list(range(1, 15, 4)))

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