I flicked one that was balancing around the rim of my pop bottle , thinking I would ping it away but only succeeded in flipping it into the bottle where it whizzed around in circles and bombed up and down madly until it found the exit . Phoebe thought it was hilarious . Our table outside was rather on a slope which caused the bottles and plates to creep east , annoyingly , but it was far nicer sitting out in the sun than indoors . After lunch , bookcase construction !
According to the above context, choose the best option to answer the following question.
Question: Why were they out to lunch ?
Options:
A. She paid for lunch to help build the bookcase
B. There were flies at home and needed to get out of the house
C. It was a nice day and they wanted to eat outside
D. None of the above choices .


C