Answer: A
Explanation: The medium is how its being delivered. Changing actors clearly changed how its being delivered.
Answer:
What are you doing?
Answer: b), using lines and shapes to symbolize meaning
Explanation: process of elimination/background knowledge
Let's name the answers a, b, c, and d.
You know its not d), because there are no words.
Then you realize there's no bright colors so it can't be a.
There's no obvious images.
It looks like lines and shapes, so it's b.