The answer is "D": "Our dogs and cats sleep upstairs." It is this because it is the only sentence that uses a verb with its compound subject.
If I helped, please thank me.
Frankenstein doesn't admit he is the murderer because he was away at college when the murder was happening.
I would say that it is the best to first plan out how you want to spend your time by making a schedule of some sort
Maintain eye contact.
Get their attention.
State the topic.
Speak slowly and clearly.
Be mindful of your setting.
Ask the right questions.
Rephrase when they don't hear you.
Hope it helps!