Answer: Python Puzzler #1031

The answer is D. The program prints:

[1, 6, 11]
What the program prints
Checked by running the program for real.

Why?

range(1, 16, 5) counts from 1 in steps of 5 and stops before 16.

The code again

print(list(range(1, 16, 5)))

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