Answer: Python Puzzler #1100

The answer is D. The program prints:

[4, 7]

Checked by running the program for real.

range(4, 10, 3) counts from 4 in steps of 3 and stops before 10.

print(list(range(4, 10, 3)))

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