This is for computer science, please help, I don't understand this :(

Duplicating objects creates copies that a. move differently than the original object b. erase the original object c. look and act like the original object d. add events to a game

Whats are the different parts of no verbal comunication, especially body language?

Two technicians are discussing a resistance measurement. technician a states that components being measured should be removed or isolated from the circuit. technician b states that power to the circuit should be disconnected when measuring resistance. which technician is correct?