The answer is the 1st one. Hope it helps :)
Madison in his writings and speeches warned against the "tyranny of the majority" in democracy or the ability for the majority in a democracy to rule however it pleased because its powered was unchecked. Therefore, Madison did indeed believe that tyranny was possible in democracy because of this notion or fear of majority rule.
They were too large and expensive - typically a computer would fill a room and would have to have its own power supply.
In my opinion the answer is C. Because an infant can't speak in sentences, can't answer questions, and just because someone is misuderstood by others doesn't always mean something is wrong.
The answer is C. Limited or not interest in interacting in a familiar environment