Answer:
A. It's true that laptops are expensive, but the benefits they provide for student learning far outweigh any initial costs.
Explanation:
Adressing a counterclaim in a civil way means in a polite and formal manner. That means, not leaving space for insults or very casual words, therefore the arguments must be refuted with a correct logic and reasoning.
I think option A is the correct choise because it is the only one that is answering a counterclaim. With the phrase "It's true that..." we can see that someone gave his arguments before, and now it's time to answer. First the author of this phrase gives some credit to the counterclaim logic and reasoning, admitting that there is a valid point there: laptops are expensive. After that, the author gives his point of view and highlights the benefits of the use of laptops, this benefits overpass the main point of the counterclaim.
