Driving requires a blank degree of awareness of the driving environment

The correct answer is "high". Driving requires a high degree of awareness of the driving environment, since a driver must be always cautious in his or her surroundings, he or she is responsible for his or her life and for the life of the passengers in the car, he or she is also responsible for the lives within the vicinity while driving, which is why drivers must be aware about everything and in details, since safety is the number on concern in driving, always.