The answer is A. The program prints:
[44, 43, 23, 22, 11, 1]

Why?
sort() puts the list in order, smallest first. reverse=True flips it, so the biggest comes first. It changes the list itself.
The code again
scores = [1, 44, 23, 11, 22, 43]
scores.sort(reverse=True)
print(scores)
Try it: change one number in the program and predict the new output before you run it.