Which of the following is appropriate behavior for communicating with a person with a disability? a. If you offer assistance, don't start helping the person until he or she accepts your offer. b. Do not attempt to shake hands with a person who has an artificial limb. c. Place your hand on the shoulder of a person in a wheelchair when you are speaking to him or her. d. If a person uses a sign language interpreter, look at the interpreter while you are talking to the person who is hearing impaired.