Which sentence uses figurative language to make a point?

a. when it was bianca's turn to speak, she said she thought she would fall through the floor.
b. what if we knew for certain that everything we were worried about today will work out fine?
c. as the author finished his book signing, he joined the cordial group for coffee.
d. the cherry blossoms that lined the potomac river were in full bloom the last week of april.