Which sentence uses a metaphor to indicate bravery?
King George was a lion on the battlefield.
King George fought very bravely on the battlefield.
King George fought like a lion on the battlefield.
King George fought with the courage of a thousand lions on the battlefield.
"King George was a lion on the battlefield." Metaphors are usually in the form of phrases like "___ was/is a ___", saying that one thing is another, not "like" it.