JQuery如何根据选定的选项标签生成更多表单字段

I'm building a web form and I want to be able to allow users to select an option from a dropdown menu and depending on which value they choose, a div containing more fields related to that option will be produce. I have successfully implemented this code with a single option for another project. I recycled the code for this project and modified it to accommodate multiple options but so far I have had no success in getting a working product running.I'm building a web form and I want to be able t