which is an example of sarcasm?

ALisa searched frantically for her favorite running shoes and thought, "I feel like I've lost my best friends!"

BBobby showed up for his date with Jennifer with a bouquet of flowers in his hand. Jennifer exclaimed, "Why, you're a regular Romeo!"

CMy mom always said money didn't grow on trees, but wouldn't it be great if it did!

DTim 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."