Answer: Python Puzzler #2940

The answer is C. The program prints:

[1, 4, 7, 10, 13]

This answer was checked by running the program for real.

Why?

range(1, 16, 3) counts from 1 in steps of 3 and stops before 16.

The code again

print(list(range(1, 16, 3)))

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