hide table row upon combo selection on two dropdown lists

hide table row upon combo selection on two dropdown lists

I tried to hide certain table rows upon selection of certain combo values on dropdown lists. for example, if user choose "combat" in option1 and "skill" in option 2, then certain table row will hide. it doesn't work. see  my code in https://jsfiddle.net/rh8dqas5/1/ 
what should be the correct code?