Answer: Python Puzzler #474

The answer is D. The program prints:

mango
What the program prints
Checked by running the program for real.

Why?

Python counts list positions from 0, so position 5 is the sixth item.

Trace table

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

positionnegative positionitem
0-6carrot
1-5melon
2-4plum
3-3apple
4-2grape
5-1mango

The code again

basket = ["carrot", "melon", "plum", "apple", "grape", "mango"]
print(basket[5])

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