Exam PCEP-30-02 topic 1 question 58 discussion

Initial List The initial list a is [1, 2, 3, 4, 5]. Slicing Operation The slicing operation is a[3:0:-1]. The slicing syntax is list[start:stop:step]: start is the index where the slice starts (inclusive). stop is the index where the slice ends (exclusive). step is the step size or the direction of the slice. In this case: start is 3, so the slice starts at index 3 (the element 4). stop is 0, so the slice ends before index 0 (the element 1), and since the step is negative, it will not include the element at index 0. step is -1, so the slice moves backward. Extracting Elements Following the slicing operation a[3:0:-1]: Start at index 3 (the element 4). Move backward with a step of -1. Stop before reaching index 0. The elements included in the slice are: a[3] is 4 a[2] is 3 a[1] is 2 Therefore, the resulting sliced list is [4, 3, 2]. Output [4, 3, 2]

b is the correct answer