Answer: Python Puzzler #862

The answer is B. The program prints:

[2, 12, 23, 28, 37, 43]

Checked by running the program for real.

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

scores = [43, 12, 23, 2, 37, 28]
scores.sort()
print(scores)

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