Consider the R clustering object ClustObjconstructed with the hclust() function in R, such that:

data%>% scale%>% dist%>% hclust(method="complete")->ClustObj

Which one of the following commands must be used to create a new variable indicating cluster membership at cluster solution k=3?

Select one:

a.mem<-rect.hclust(ClustObj,3)

b.mem<-kmeans(ClustObj,3)

c.mem<-cutree(ClustObj,3)

d.mem<-rect.hclust(ClustObj,5)

e.mem<-filter(ClustObj,3)