Chapter 19, Problem 3SA

Explanation of Solution

Index of an element in a list:

• In a list, the index of an element implies the zero-based position of the element.
• A list is a collection that stores its element in a location-based order.
  • Each element in a list is related with an index that matches to its location within the list. That is the first element has index 0, the second element has index 1 and so on...