Answer: Python Puzzler #1189

The answer is A. The program prints:

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

Why?

range(6, 8, 2) counts from 6 in steps of 2 and stops before 8.

The code again

print(list(range(6, 8, 2)))

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