Answer: Cell-phone usage should be embraced at public schools as a means of information acquisition
Step-by-step explanation:
An argument topic would be one that suggests something should be done in a certain way or is a certain way. It is therefore an opinion on how things should be done.
From the options, the first cannot be presented as an argument as it is simply a statement of fact. The same goes for the second and third options. The fourth option however, suggest that cell-phones should be used to get information in public schools. It is therefore an opinion and can be presented as an argument.