Which is the best way to delete unreferenced variables?

Which is the best way to delete unreferenced variables?
A . Delete them one by one from the Variables panel. UiPath Studio performs the workflow validation in real time, therefore you can see which variable is being used.
B. The unreferenced variables do not utilise memory, therefore you do not have to delete them.
C. You can manage your variables from the Design panel > Manage Variables > Remove Unreferenced.

View Answer

Answer: C