John stumbled in the dark trying to find a lamp, but there wasn't one nearby.  It was late and everything was dark. The entire what was pitch black.\nOptions:\n- country\n- bedroom\n- building\n- store\n- desktop
Step-by-step reasoning process below:
building
Building is a structure with a roof and walls, such as a house or factory.

John stumbled in the dark trying to find a lamp, but there wasn't one nearby.

It was late and everything was dark.

The entire building was pitch black.

.

So, the final answer is building