Eric Has Been Playing Games at Jeffrey's House for Most

Eric has been playing games at Jeffrey's house for most of the night. Although they haven't had any alcohol, Eric had been awake for about 20 hours. He decided to call his girlfriend to say that he is going to get some sleep at Jeffrey's house before driving home. He knows his _____ is impaired, and that increases his risk of _____.

A) driving ability; having a heart attack
B) driving ability; having a car accident
C) cognitive ability; losing a game to Jeffrey
D) sensory ability; having a sleep disorder