Assume the following is the full path to the directory that a student wants to use as their working directory in R: $"/$Users$/$student$/$Documents$/$projects$/"$

Which of the following lines of code CANNOT set the working directory to the desired "projects" directory?

setwd$("$~$/$Documents$/$projects$/")$

setwd$("/$Users$/$student$/$Documents$/$projects$/")$

setwd$(/$Users$/$student$/$Documents$/$projects$/)$

dir $<-"/$Users$/$student$/$Documents$/$projects$"$

setwd$($dir$)$

unanswered