Answer: Python Puzzler #2361

The answer is C. The program prints:

99

This answer was checked by running the program for real.

Why?

sum adds up all the numbers in the list.

The code again

scores = [28, 13, 12, 17, 9, 20]
print(sum(scores))

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