Answer: Python Puzzler #2445

The answer is A. The program prints:

melon

This answer was checked by running the program for real.

Why?

A negative position counts from the end: -1 is the last item, -2 the one before it. So -4 means item number 4 from the end.

Trace table

A trace table follows the program step by step. Here’s this one:

positionnegative positionitem
0-5pear
1-4melon
2-3banana
3-2mango
4-1plum

The code again

basket = ["pear", "melon", "banana", "mango", "plum"]
print(basket[-4])

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