Ethos.
As in appeal to ethics. It can't be logos because that is for logic and the other because those are literary devices, not appeals.
An independent clause is a sentence that can stand alone, and is usually followed by a subordinating conjunction that connects the independent and dependent clause
Answer:
because
Explanation:
this is because they are both sentences but by adding the because they got joined.
Emily and Susan's yard is landscaped with only native plants.