which statement is sarcastic?

a. “ thanks, the sinner is great,” he said as he served the food.
b. “ well, aren’t you graceful!” he laughed as she tripped.
c. “ well, aren’t you graceful!” he exclaimed, as she danced.
d. “ thanks, this dinner is great,” he said, as he began to eat.

b. “ well, aren’t you graceful!” he laughed as she tripped.