Which is an example of sarcasm?
a. lisa searched frantically for her favorite running shoes and thought, "i feel like i've lost my best friends! "
b. bobby showed up for his date with jennifer with a bouquet of flowers in his hand. jennifer exclaimed, "why, you're a regular romeo! "
c. my mom always said money didn't grow on trees, but wouldn't it be great if it did!
d. tim stayed late after school one day, and reba looked at him and asked, "are you still here? " he replied, "no. i left 10 minutes ago."