Question

Which of the following options is a property of python lists?

O lists are unordered.
O list elements are key-value pairs.
O lists can be nested (list within a list).
O lists must contain at least one element.

Answer 1

The correct property of Python lists among the given options is that they can be nested. Lists in Python are ordered and do not require a minimum number of elements, as they can be empty, unlike dictionaries, which are key-value pairs.

Step-by-step explanation:

In answering whether Python lists have a certain property, we can look at the options provided. It is incorrect to say that lists are unordered; Python lists are ordered, meaning the items have a defined order, which will not change unless explicitly commanded. Another statement suggests that list elements are key-value pairs, but this characteristic is specific to dictionaries, not lists. On the assertion that lists must contain at least one element, this is false; Python lists can be empty.

However, the option that lists can be nested is true. A nested list is a list that appears as an element in another list, which is a powerful feature for building complex data structures. Therefore, out of the options provided, the property that lists can be nested is the accurate one for Python lists.