Which set of two statements-followed by the cbind() function-results in a data frame named vbound?
none
v1<-list(1,2,3) v2<-list(c(4,5,6)) vbound<-cbind(v1,v2)
v1<-c(1,2,3) v2<-list(4,5,6)) vbound<-cbind(v1,v2)
v1<-c(1,2,3) v2<-c(4,5,6)) vbound<-cbind(v1,v2)