Answer: Python Puzzler #2639

The answer is B. The program prints:

banana

This answer was checked by running the program for real.

Why?

Python counts list positions from 0, so position 3 is the fourth item.

Trace table

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

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

The code again

basket = ["pear", "grape", "apple", "banana", "plum", "mango"]
print(basket[3])

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