Answer:
B. The electricity flows and the motor turns on
Explanation:
Think of circuits as a draw bridge. When the draw bridge is up no one can cross over to the other side. When the draw bridge is down everyone can cross over to the other side. Similarly to open and closed circuits, when the circuit is open no electricity can flow. When the circuit is closed electricity can flow.
Unexpected means it was something you did not "expect" to happen such as a car crashing into you which means this is wrong.
Unfair is any injury.
Unnecessary means it was never needed and could have been prevented/not done therefore unnecessary is the best term.
Dont take it if your doctor says to then you can because if you take it you might die
Unused vitamin A is stored up in the fat cells of the body, so it builds up over time.
