Answer:
A.
Explanation:
The key word is simultaneously when it comes to parallel computing. Although the option <em>could </em>potentially be C, it's more likely to be A because it's "more right" in the words of my old English teacher. This is because A implies them working on it at the same time to reach the goal more effectively (another key word).
College Dormitory probably
Are you talking about resolution? Do you mean PPI? Pixels Per Inch?
