Which of the following is the correct order of strength of necleophiles in polar aprotic solvents

Which of the following is the correct order of strength of necleophile

1.	Which of the following is the correct order of strength of necleophiles in polar aprotic solvents
Answer» `C_(2)H_(5)bar(O) gt bar(O)H` `(CH_(3))_(3)Cbar(O) LT CH_(3)bar(O)` `CH_(3)bar(O) gt bar(O)H` `RCObar(O) gt RCOOH` SOLUTION :Nucleophlicity