I Have attached the task instructions, the links on the webpage can not be clicked and when I change them from router$-$link to href I can click the components however it says page unavailable once clicked.

The Task Instructions:

Create a single page application.

$1.$ Create a single page application including router and components.

$2.$ The application includes three menu items: Name Test, Post Management and Student

Marks.

$3.$ Create three components for the three menu items. When a menu item is clicked, the

corresponding component should be shown. You can refer to our previous codes: Task $3\mathrm{.}1$

"Name Test," Task $5\mathrm{.}1$ "Post," and Task $8\mathrm{.}1$ "Student Marks."

$4.$ Test the web application on the browser to make sure that it works as you expect.

CODE IS AS FOLLOWS:

index.html: