Answer: Python Puzzler #3011

The answer is B. The program prints:

[45, 32, 10, 8, 7, 4]

This answer was checked by running the program for real.

Why?

sort() puts the list in order, smallest first. reverse=True flips it, so the biggest comes first. It changes the list itself.

The code again

scores = [4, 32, 8, 45, 10, 7]
scores.sort(reverse=True)
print(scores)

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