The earliest stages of photography are in many ways the most satisfying. Learning to handle the controls is easy and comes quickly, and you can measure the results in terms of sharp and correctly exposed pictures. Once you have mastered that, you can start on the second stage of your photographic career. Applying these basic skills in a wide range of situations to give the pictures you want, concentrating on what you see through the viewfinder and tuning that into the most effective picture becomes totally absorbing. All good photographs have one thing in common: there is no doubt what the subject of the picture is meant to be. Focus, exposure and composition all lead your eye to the same point, they all make the subject of the picture stand out. Every photographer must apply those same standards to his or her work, not only to the finished results but to the subject before he or she takes it. Always work out quite clearly what the subject of the picture is to be and why you are taking the picture. For example, "I am going to take a picture of this street to show the different styles and ages of the buildings and that people have been living, working and shopping in them since time began." By doing this you have a better idea of what to include in the picture and what to leave out. How often have you been shown photographs taken by people away on a trip somewhere The commentary is always similar, something about "the car park is out of the picture to the left", or "you can’t quite see from this picture but if you go up the street ...". The photographs are usually confusing collections of buildings, people, parked cars, possibly a distant glimpse of an ancient cathedral, and best of all, a figure which you are told is Aunt Henrietta, disappearing in the middle distance. When photographers show you their pictures, they have a clear idea of what they want to bring to your attention, but it often does not appear in the picture. If they had given just a little of their time to think about their future commentary before taking the picture, then the picture would relate its own story. Good pictures communicate quickly and easily. By saying "The earliest stages of photography are in many ways the most satisfying", the author means that
A．the skills of photography are not as satisfactory nowadays as before. B．the earliest pictures were the best pictures people have ever taken. C．the present-day photography depends more on technolog7 than on art. D．learning to produce a sharp and correctly exposed picture is only the first step in photography and is easily learned.