What woke Sofia up at 4:30 in the morning? a) A strange noise b) A falling object c) The feeling of being trapped

The answer must be something that would wake someone up at 4:30 in the morning. Of the above choices, only a strange noise would wake someone up at that hour. So the answer is a) A strange noise.

Option b, a falling object, is unlikely to wake someone up at that hour unless it was a very loud noise or it hit something that made a loud noise. Option c, the feeling of being trapped, is also unlikely to wake someone up unless they were actually trapped in something.

A strange noise is a more likely explanation for why Sofia woke up at 4:30 in the morning. It could have been anything from a loud bang to a strange animal noise. Whatever it was, it was enough to startle Sofia awake.