Answer: D, all of the above.
Explanation: In history, drawing was the only recognized form of art, based on definition, drawings even now help language barriers, and before photography and film, people drew many things, like maps and hieroglyphs.
Aldrich Hitchcock was considered one of the best English director. He has a technique in getting people's attention through the visual effects of his films where some of it are optical effects and others are mechanical effects.The sound and visual techniques require less attention like his film entitled "Blackmail".
Aside from being a director, he is also a producer and he popularized McGuffin technique.
Trachea I think is the answer?
