单选题 Whether people in recent times have become more protective of their personal space is hard to say. Yet studies of airlines show passengers strong desire to have some space to themselves.
In a recent survey from Trip Advisor, travelers said if they had to pay for certain benefits, they would rather have larger seats and more legroom than extra food.
Scholars know that commuters hold newspapers in front of them to read, but also to shield themselves from strangers. They know that college students unconsciously sit at positions where they can avoid direct eye contact.
"If you videotape people at a library, it's very clear what scat people will take," said Professor Dane Archer. One of the comer seats will go first ,followed by the chair diagonally (斜对角) opposite because that is the farthest away.
"If you break those rules, it's fascinating, "Archer added, "People will pile up books as if to make a wall."
If someone sits too close to you in the library, you will pile up books in front of" you so as to

• A. hide your awkwardness.
• B. show indifference to the person.
• C. protect your personal space.
• D. give the person an angry look.