Answer: Cell-phone usage should be embraced at public schools as a means of information acquisition
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.
Cognates are words from different languages that look similar and mean the same thing. These words are usually derived from and share the same etymological origin, which is an advantage if you're looking forward to learning a new language. For example, several words in other languages such as French and Spanish have similar appearances and meanings in English, with a few even having the same spelling.