for Execerise 1 , Feautre setection , my runing result is matched with the result example provide within the expect result and after I completed exercise 1 , before moving to execise 2 , I submit the assginment to check score , but the result all of them get 0/10 which is not should be all of them 0/10 , however the feature selection , I should get 10/10 and the rest should be 0/10 , so that I can move on , How should I do on Execise 1cC2_week3 or I must completed all execises first and submit all execise at once?