Django - Dynamically get the appropriate data based on the dropdown selection
Using JQuery: 

Pass whole options as key value pair, ex: {key : {key:val, ...}, ...} 
Use JQuery to show and hide equivalent sub options when an
option is clicked.

Using AJAX:

When an option clicked, send an AJAX request to the server.
Fetch its sub options and show in the browser using JQuery.
I have a template where I have a dropdown. I would like to display some data based on the dropdown value selected. The data is fetched from the DB.
As I have no idea about ajax or jquery, I need help here to dynamically display the content based on the dropdown selected.
Example: Say my dropdown is [1,2,3,4]. When user selected 1, it should display ONE in my HTML, if user selected 2 then it should display TWO and so on.
Can some please share me the HTML code for the above example (with ajax or jquery)?