Fact 1: Aswitch is used to start the flow of current in an electrical circuit.

Fact 2: Electrical circuits have fuses that blow.

Given the two facts above, answer the question "A switch is used to start the flow of current in what?" with the following options: 
- Ocean currents
 - something with fuses.
 - Veins and arteries.
 - circulatory systems
 - Current date
 - Batter switch
 - Earth orbiting the Sun
 - Basic units of the plant body.


 

  something with fuses.       