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In Python, a tuple is a collection similar to a list in that it is an ordered collection of items. An important difference,

however, is that a tuple is immutable once created, a tuple cannot be changed. Also, tuples are denoted using

parentheses instead of square brackets. As with lists, elements of a tuple are accessed using indexing notation.

For example, given the tuple subjects = (physics, chemistry, biology), we could ac

cess the elements of the tuple using subjects[0], subjects[1] and subjects[2].

Write a function grocery shopping() that takes a list of tuples called items_purchased that represent

CSE 101 Spring 2020 Homework #2 4items purchased at a grocery store. Each tuple contains three items, in this order:

the name of the item to purchase

the unit cost of the item in dollars

the number of units desired

The example tuple (Juice, 3, 5) indicates that we bought 3 units of Juice at $5 apiece, for a total of

$15.

The purpose of the function is to determine and return the name of the item that cost the most to buy.

You may assume that each named item occurs once in the list. For example, we would not fifind two tuples that

both have Juice as the item to purchase.

Examples:

Function Argument Return Value

[(Bread, 3, 3), (Eggs, 2, 3)] Bread

[(Milk, 5, 2), (Butter, 4, 1), (Juice, 1, 5),

(Eggs, 4, 3)]

Eggs

[(Milk, 2, 2), (Butter, 4, 1), (Juice, 3, 5),

(Eggs, 4, 3)]

Juice

[(Peas, 5, 2), (Meat, 3, 13), (Beer, 4, 12),

(Ice cream, 3, 5), (Eggs, 3, 3)]

Beer

[(Peas, 5, 2)] Peas

Note: The quotation marks displayed in the example return values are there to emphasize that the return values

are strings. Do not add quotation marks to the return values.