Answer: Python Puzzler #2909

The answer is A. The program prints:

[5, 6, 21, 24, 30, 47]

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 = [24, 30, 21, 47, 5, 6]
scores.sort()
print(scores)

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