Will the list of options be static, or will they change over time at all? It ‘may’ make a difference as to where the URL will need to be pointed. It might be worth outlining a bit more about what the menu options will be, so we can understand the use case a little better.
So why have you given the field name=“term” instead of name=“option”? The way you currently have it the form will use &term=1 &term=2 etc instead of option.