Creating a Tool with dropdown list

Copper Contributor

Hi

Can anyone suggest me a way to create a troubleshooting tool with dropdown lists.
The issues will be categorized ,and when user selects a category it will show the next level of classification and at the end of hierarchy the issue will be there along with the solution.
Here we need multiple drop down lists 
The first dropdown will be a list providing first level of classification .
The values of second dropdown should be dependent on the value selected in the first dropdown and
the 3rd dropdown should be dependent on the value selected in 1st dropdown and so on

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