Some educators claim that it is best that school courses cover only basic subject matter, but cover it in depth. These educators argue that if students achieve a solid grasp of the basic concepts and investigatory techniques in a subject, they will be able to explore the breadth of that subject on their own after the course is over. But if they simply learn a lot of factual information, without truly understanding its significance, they will not be well equipped for further study on their own. The educators' reasoning provides grounds for accepting which one of the following statements? ['It is easier to understand any Greek tragedy after one has analyzed a few of them in detail.', 'It is easier to understand how plants and animals are classified after learning how plants and animals can be useful.', 'It is easier to learn many simple ideas well than to learn a few complicated ideas well.', 'It is easier to remember new ideas explained personally by a teacher than ideas that one explores independently.']