Answer: Python Puzzler #1156

The answer is D. The program prints:

[3, 7, 27, 39]
What the program prints
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 = [3, 27, 39, 7]
scores.sort()
print(scores)

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