Pick many - customized feedback
I am looking for the best way to give customized feedback based on a "pick many exercise". For example, if the choices are A,B,C,D and the right answers are B and C, I would like to be able to tell them they missed C if they only pick B, or tell them they made a wrong choice if they pick the right ones plus one wrong, etc. Any projects or templates out there where someone found the best way to do this? Thanks!