The second one. <span>Tina recalled that, “She had really enjoyed her visit to Virginia.”</span>
A noun is a person, place, or thing
I think A would be your best bet but im not 100% sure, space is a place and everyone I guess would be considered a person/people
I will jelp you.
Automation in the sentence refers to B. The use of machines that function on their own.
the second bit is more formal, " You're six years old, aren't you?"
because, the other sounds very demanding or imperative, like as if you have to answer the question. so, it has to be the second line.