Question

what is electricity? how does current flow out of a circuit diagram?

Explanation:

In a circuit diagram, current flows from the positive terminal of the battery (longer line in the battery symbol) to the negative terminal (shorter line). Looking at the options, we analyze the direction of the arrows relative to the battery symbol. The third option (bottom - left with blue arrows) shows current flowing from the positive terminal (longer line) outwards, which is the correct direction of conventional current flow (from positive to negative in the circuit, while electron flow is opposite, but circuit diagrams use conventional current).

Answer:

The third diagram (bottom - left with blue arrows pointing to the right, starting from the positive terminal of the battery) shows the correct current flow out of the circuit diagram.