If this is how you've presented the question, Its a bit hard to answer it when one hasn't read these books. It'd be best if you'd put both books into a summary for us to go based off of, at most.
Sure, trees produce oxygen that help us breath and animals help with the production of food
Answer:C. The visitor left his stick behind.
Explanation:
Your question is referring to the excerpt from ''The Hound of the Baskervilles'' by Sir Arthur Conan Doyle in which Sherlock is describing his visitor at the beginning of the first chapter.
''Mr. Sherlock Holmes, who was usually very late in the mornings, save upon those not infrequent occasions when he stayed up all night, was seated at the breakfast table. I stood upon the hearth-rug and picked up the stick which our visitor had left behind him the night before.''
After that, Sherlock picks up the stick and read what is written on it and then he is asking Watson about his opinion on it.
He was considered as the absent-minded because he left something with his name and evidence that is showing that he was there. If he was aware, he would not do that. In that way, Sherlock got all information about him.
<span>neither my dad nor my siblings wants to go to the family reunion this summer</span>