What statement regarding the use of lists is accurate?

Question

BlackTom AI · Accepted Answer

To tackle the question, we must evaluate what each option says about lists and determine which statement is accurate.
Option 1: 'The individual elements within a list are immutable, in that the values cannot be changed.' This is not correct in Python (and many other languages) because while you can’t reassign the entire list element in the sense of making it reference a different object, you can modify the value at a given index (e.g., my_list[0] = new_value). Therefore, the claim that elements are immutable is false.
Option 2: 'Two lists cannot be concatenated together, without the creation of a differently named third list.' In Python, you can concatenate lists using the + operator, which produces a new list, or you can extend one list with another using .extend(). Both approaches yield a result without requiring a separately named third list; you still obtain a combined list, so the statement is inaccurate.
Option 3: 'A list can be sliced into sublists.' Slicing a list (e.g., my_list[0:3] or my_list[:2]) returns a new list containing a portion of the original elements, and this can be considered a sublist. This behavior is correct and matches common list semantics.
Option 4: 'When a list is evaluated, the elements are not evaluated.' In Python, evaluating a list literal evaluates its elements (unless they are lazy objects, but generally literals like [1, 2, 3] compute to a list of those values). The claim that elements are not evaluated is therefore false.
Thus, after inspecting each option, the only statement that accurately describes list behavior is option 3. The other options reflect common misconceptions about mutability of elements, concatenation semantics, or evaluation of list literals. Remember, slicing returns a sublist, which is a new list object containing a subset of the original elements.

ISOM 316 2 Coding for Business - Fall 2025 Final Exam Fall 2025

What statement regarding the use of lists is accurate?

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关于列表的使用，以下哪项陈述是准确的？

列表是可变的。

A list is mutable.

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