Explanation:
he is felling happy when he greet the Raven
Pathos is used when you are making an emotional argument
logos is used when you are making a Logical argument and
ethos is used when you are using some one else to support your argument
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By explaining problems and giving solutions! this is the best fit because the other two might make sense at a first glance, but only explaining problems and solutions would be an effective way to teach people how to set up an aquarium by giving them examples of what to do and what not to do whereas the others are just him talking about his aquarium.
Answer:
Rose fits the context the most, here.
