How to show fields based on selection of dropdown field

Hello. I am new to these forms so please excuse me. 

I want to create something like this;

one the drop down menu has been selected. Once the client has chose something from that drop down menu it brings up some form information relevant to that specific choice in the drop down box. 

How do i do it?

Thanks again 

If I understood you correctly you want that different field are show based on option that is selected inside of dropdown field. You can achieve that with conditional logic  Show/Hide field option.

https://www.jotform.com/help/57-Smart-Forms-Using-Conditional-Logic 

https://www.jotform.com/help/316-How-to-Show-or-Hide-Fields-Base-on-User-s-Answer 

You can also show/hide multiple fields at once:

https://www.jotform.com/help/196-Hide-or-Show-Multiple-Fields-at-Once 

Also this guide can help you to create your form: 

https://www.jotform.com/help/ 

https://www.jotform.com/help/2-How-to-Create-Your-First-Web-Form 

Here is my sample form: https://form.jotform.com/61315623842957

Feel free to cloned it and inspect conditions that I have set.

Hope this will help. let us know if you need further assistance.