Answer: Python Puzzler #2990

The answer is D. The program prints:

[6, 14, 21, 40, 45, 49]

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 = [6, 40, 21, 45, 49, 14]
scores.sort()
print(scores)

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