Many children who are deaf, who are born to hearing parents, invent their own signs when they are not instructed in formal sign language. This is known as _____

Can you possibly give me a ride to the airport this Sunday?" your friend Ben asks. You agree and then he tells you, "Oh, btw, the plane leaves at 7:00 am so I need to be at the airport by 5:30. Pick me up at 5:00". You are still likely to do the favor because of:

a. foot in the door b. norm of reciprocity c. door in the face d. obedience

With age, thinking becomes more

scattered. tangential. efficient. convoluted.