Certain people in a vegetative state gave possible indication of consciousness by doing what? a. Laughing or crying in response to what someone said. b. Moving their eyes to the left or right to...

Certain people in a vegetative state gave possible indication of consciousness by doing what? a. Laughing or crying in response to what someone said. b. Moving their eyes to the left or right to answer yes/ no questions. c. Responding to directions to think about tennis or walking around a house. d. Squeezing the hand of a loved one