Answer: Python Puzzler #1270

The answer is B. The program prints:

[2, 7]

Checked by running the program for real.

range(2, 10, 5) counts from 2 in steps of 5 and stops before 10.

print(list(range(2, 10, 5)))

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