In the play, Iago manipulates and anticipates the other characters so skillfully that they seem to be acting simultaneously of their own free will and as Iago's puppets. What is the role of Iago in manipulating the other characters?
1) He uses his intelligence and cunning to manipulate them
2) He uses his physical strength to control them
3) He uses his wealth and power to influence them
4) He uses his charm and charisma to deceive them