Answer: Python Puzzler #1253

The answer is B. The program prints:

[13, 27, 40, 48]
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 = [13, 48, 40, 27]
scores.sort()
print(scores)

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