Answer: Python Puzzler #1022

The answer is A. The program prints:

[5, 10, 15]

Checked by running the program for real.

range(5, 18, 5) counts from 5 in steps of 5 and stops before 18.

print(list(range(5, 18, 5)))

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