How can a human teacher make a difficult point easier?

Correct answer: By explaining and giving examples

The governing concept is explanatory and learner-centred teaching. A difficult point becomes easier when a teacher breaks it into smaller steps, uses familiar words, supplies an example, and checks the learner’s understanding. A human teacher can observe the child’s reaction and immediately change the explanation if the first approach is unsuccessful. This flexibility is an important advantage over a fixed mechanical lesson. Therefore option A is correct. Leaving the child alone removes guidance, switching off a screen does not itself create understanding, and hiding the answer prevents learning. The question does not suggest that a teacher should simply provide answers; it highlights explanation and examples as tools that lead to genuine comprehension.