No, you're the maintenance guy. Computers don't care about formatting. The correct answer is A, because "A" is drawn with just three straight lines and computers like straight lines.
A C, however, can be drawn as half of a circle - one command to draw an arc, a center point, a radius, and the start and stop angles. Five pieces of data.
(This is assuming, of course, that computers prefer minimal amounts of data. If that's wrong, then the computer would obviously prefer B. You need more data to describe it.)