Read the passage and answer the questions A and B.

When you are in the driving seat of a car, you have the steering and the horn in your hands, the brake and accelerator  under your feet, eyes open looking ahead, left and right. The same can be said about a motorcycle rider, with some  modifications. These are all very visiblE- But behind all, there is something that keeps working unseen. And that is the  Central Processing Unit (CPU), your brain. CPUs are artificially intelligent machines that are programmed to do specific  jobs under fixed conditions and judgments. But the human brain is intelligent by naturE- It is the most sophisticated machine  that is able to operate on ever-changing conditions and standards of judgment. As conditions in the traffic keep invariably  changing, this virtue of sophistication of your brain must be at work when you are driving. The difference between traffic in  the roads and highways and racing circuit must not be blurring inside you. Never imagine yourself to be a Michael  Schumacher driving an F-l at 300 mph. Leave no room for fantasy. You must always be ready to encounter unexpected  behaviour from any vehicle or pedestrian. 'Keep your cool' is easy to advice but difficult to maintain. Still you must always  restrain yourself because, at the end of the day, you don't want to be regarded as a killer. Now you see, the last thing that differentiates you from a computer is your consciencE-