Answer: Python Puzzler #2878

The answer is A. The program prints:

[1, 3, 5, 7, 9, 11]

This answer was checked by running the program for real.

Why?

range(1, 12, 2) counts from 1 in steps of 2 and stops before 12.

The code again

print(list(range(1, 12, 2)))

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