1. D. Argumentation
Argumentative essays is a genre of writing where a certain topic is discussed, explored and inspected. It often makes use of empirical research. The writer then chooses a side on the topic, explaining his opinion on the matter in a compelling, evidence-based essay. It usually uses first person to make the writer's ideas and stand on the issue clear and concise.
2. B. Credible
Sources are the basis for informed opinion. Thus, it must be credible.
Answer:
My hobby is playing the guitar. Playing the guitar is so much fun. I can write music
