Câu hỏi:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 37 to 43. 

     The transition of digital photography from the privilege of rich people to an ordinary home appliance has caused some problems. That is the reason a modern man has a set of questions concerning digital cameras.  The basic problem in choosing a digital camera is the guarantee that the device you are purchasing will "grow old" in a couple of months due to constant improvements and developments of technology. The only factor that may delay this process of "growing old" is purchasing a device with the price twice or three times higher than the average market price for a digital camera at the moment. If a person chooses a digital camera, there are several criteria of a great priority he needs to keep in mind: the price and the image resolution of the camera, the capacity of the memory card, the presence of an LCD display, the interface of the device and its weight and size. 

     The price of a digital camera depends on its quality factors. The resolution of a digital camera or the "size of a digital image", is measured in pixels which are photosensitive elements. It is common knowledge that the bigger the amount of pixels in the camera properties is the better it is. Therefore, if a high-detailed photo is required, the usage of the zoom on a digital camera with low resolution will not give the desired result. In this case, person choosing a digital camera needs to exactly know what it will be used for and to choose it according to its future destination. It is necessary to mention that the resolution of 640 x 480 is the lowest resolution any customer should be orientated to. It is the minimal resolution with which the purchase of a digital camera still remains reasonable. 

     The lens of the camera or the zoom properties allows saving a lot on the price of the device but hits the quality of the pictures. The memory card is a very important issue, too. It is much better to choose a good camera with a small memory capacity than an average digital camera with a larger memory capacity. The presence of an LCD display is no longer a wish. It is a requirement for any digital camera. It allows people to check the future image, to anticipate it and to delete bad images and therefore to save space. 

What is the best title for this passage?