Answer: Python Puzzler #3315

The answer is A. The program prints:

[9, 31, 34, 39, 41]

This answer was checked by running the program for real.

Why?

sort() puts the list in order, smallest first. It changes the list itself.

The code again

scores = [41, 39, 9, 34, 31]
scores.sort()
print(scores)

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