What will happen in the diagram if a lightbulb placed at D and B is closed?

Responses

The lightbulb will be on.
The lightbulb will be on.

The lightbulb will be short circuited.
The lightbulb will be short circuited.

The lightbulb will be off.
The lightbulb will be off.

The lightbulb will be dimmer than normal.