HELP WITH ITERATION!!!

HELP WITH ITERATION!!!

I HAVE A SIMPLE ISSUE AND READ ALL OF THE "HELP" DOCS AND NOTHING IS WORKING!  
I HAVE A SIMPLE VARIABLE THAT HAS MULTI-SELECT STRING OUTPUT.  I WANT TO GO THROUGH EACH ROW AND SEPARATE OUT EACH MULTI-SELECT INTO A DIFFERENT COLUNM AND SUMS. 

TYPE OF ACTIVITY: SELECT ALL
A
B
C

RESULT
MARY = A,BC
JOHN = A,B
SAM =A

I NEED TO KNOW VIA A VIEW HOW MANY PEOPLE WANT TO DO A TOTAL, HOW MANY PEOPLE WANT TO DO B TOTAL, ETC.