Answer: Python Puzzler #2789

The answer is D. The program prints:

plum

This answer was checked by running the program for real.

Why?

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

Trace table

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

positionnegative positionitem
0-6plum
1-5banana
2-4mango
3-3melon
4-2pear
5-1apple

The code again

basket = ["plum", "banana", "mango", "melon", "pear", "apple"]
print(basket[0])

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