In the mid$-1990$s$,$ the Roberts Enterprise Development Fund $($REDF$),$ a San$-$Francisco$-$area nonprofit developed a framework to measure Social Return on Investment $($SROI$).$ The components of the SROI include the following except:

Question $23$ options:

a$)$

Enterprise value

b$)$

Social purpose value

c$)$

Blended value

d$)$

Innovation value