School band members need to raise money for new uniforms. Some members want to sell energy drinks at a football game to raise funds, but others want to organize a car wash in the school parking lot. Based on the concept of scarcity, which thought should drive members' decision-making process to determine how to fundraise?

Where will unsold energy drinks be stored?
Is there enough consumer demand for a car wash?
Will the concession stand be open during the big game?
Are there enough volunteers to work a car wash?