Read the passage carefully and choose the best answer to each question out of the four alternatives.
Passage:

Nobody can argue that the acquisition of Knowledge is more fun and easier with computers. The mere activity of touching and exploring this device constitutes an enjoyable task for a child. This, accompanied by the relaxing attitude and software interactivity, usually contributes to a better grasping of new knowedge, At a higher educational level the availability of digital books, simulators and other
academic materials provide the student with an ever accessible source of information, that otherwise would not be at hand. But, besides the increasing complexity and behaviour of intelligent software, which is usually embedded in the academic digital maternal, the need for human interaction in the learning process will always be present, at leastin the foreseeable future. There is the necessity for a human being to be able to determine what the specific needs of each individual are. A computer, no matter how sophsicated its software is, can hardly mimic the expertise of a teacher in how to explain and adapt complex concepts to different individuals.