Which of the following is an example of a metaphor?

A. The sky is blue
B. She has a heart of gold
C. The sun is shining
D. The flowers are blooming

Explanation:

“She has a heart of gold” is an example of a metaphor because it describes someone as having a heart that is pure and precious, like gold. The speaker is not literally saying that the person has a heart made of gold, but is using the image to convey a deeper meaning about their character.