Answer: Python Puzzler #1140

The answer is B. The program prints:

[5, 10, 15]
What the program prints
Checked by running the program for real.

Why?

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

The code again

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

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